Add the changelog entry for the continue link

"Continue to your account" says nothing about where the link goes. Use
the chosen page's own title instead — "Continue to Book a Lesson" — so
the visitor knows before clicking.

An untitled page keeps the generic wording rather than rendering
"Continue to ".

CHANGELOG.md

@@ -11,6 +11,63 @@ When a `v*` tag is pushed, `.gitea/workflows/release.yml` publishes the matching
 the plugin to the next patch version and adds a fresh section here for it. Record
 each change under the current top section as you work.
 
+## [1.2.4]
+
+### Fixed
+- The registration page **no longer dead-ends a visitor who is already signed in**. It used to greet them with "You already have an account and are logged in." and nothing else, leaving them to find their own way to the studio. They now get a link onward to the page chosen under the block's **After registration** panel, and the link names it — "Continue to Book a Lesson" rather than the vaguer wording an invited student used to see. With no page chosen, the message appears on its own as before, because sending someone who is already signed in to the sign-in screen helps nobody.
+
+## [1.2.3]
+
+### Changed
+- A **monthly group class is now billed its price once per month**, however many times the class meets in that month. Previously the monthly charge multiplied the price by the number of sessions in the month — a class priced at `40.00 CAD` meeting weekly was billed `160.00 CAD` on the 1st — which no studio could quote honestly on a class card. A monthly **private lesson** is unchanged: its price is a per-lesson fee and the month is still billed one fee per lesson, which is why it is quoted per lesson. Studios running a monthly group class should check the class price now reads as the monthly fee they intend to charge.
+
+### Added
+- Every price a student sees now says **when** it is due. Lesson types in the booking form read `50.00 CAD at booking`, and group-class cards read `120.00 CAD up front`, `40.00 CAD weekly` or `40.00 CAD monthly` — the offering's billing mode, in the student's words. A monthly **private lesson** is quoted per lesson (`50.00 CAD per lesson monthly`), since its monthly charge covers every lesson booked that month; a monthly group class is quoted as the monthly figure it is. A free offering still just reads **Free**.
+- The **Policies** admin page can now **show you what is actually in a version**. Every row in the versions table has a **View** button that opens that version's text below the table, rendered exactly as students see it at booking and signup, whether the version is the published one, an old archived one, or a draft nobody has seen yet. The text is editable straight from the viewer, and what happens when you save depends on the version: a draft is simply updated in place, while editing a **published or archived version saves your text as a new draft version** and leaves the original exactly as students accepted it. The new draft then opens in the viewer ready to publish. Nothing a student has agreed to is ever rewritten.
+- Booking a lesson and enrolling in a class now take a **second confirmation that the student agrees to pay**. Above the Confirm button the form restates the price with its cadence, spells out how it is collected ("Charged on the 1st of each month, for that month's lessons"), adds the studio's HST so the figure matches the total actually billed, and requires a tick on "I agree to pay 56.50 CAD at booking." before it will submit — separate from, and in addition to, the studio policies the student accepts above it. Reserving a time weekly quotes the per-lesson fee and the most it can add up to ("up to 12 lessons, 678.00 CAD in total"), since a week another student takes first is simply not booked. Free offerings have nothing to agree to and show no price block.
+
+### Fixed
+- Policies are **readable where students have to accept them**. A policy typed as plain paragraphs — the normal way to write one, with no HTML — was being dropped into the booking, enrolment, and signup forms unformatted, collapsing the whole document into a single squashed line with a horizontal scrollbar and words piling on top of each other. Policy text is now formatted the same way WordPress formats post content, so blank lines become real paragraphs, and the acceptance box is styled as a proper bounded reading panel: long policies scroll vertically instead of running off the side of the page, long pasted links wrap rather than forcing the page sideways, and the "I have read and agree" tick stays in view. Policies written with HTML are unaffected. The studio registration page was also missing the plugin's stylesheet entirely, which is why the problem was at its worst there.
+
+## [1.2.2]
+
+### Added
+- The **Lesson Booking** block gained three embedding options in its sidebar. **Lesson type** pins the block to a single private-lesson type — only the times bookable as that type are listed and it is the only thing bookable there, auto-selected on the registration form — so a page about one lesson type can carry its own calendar. **Show the lesson-type filter** turns the **Show Only** control on or off. **Sections** embeds just one half of the page: booking calendar only, or the student's upcoming lessons only, so the two can live on different pages. All three are available to the shortcode as `[us_booking lesson_type="…" show_filter="no" show="booking|upcoming"]`, and the block's editor preview follows the chosen sections.
+- The booking calendar now has a **Show Only** button beside the List/Week toggle that opens a lesson-type filter, so a student browsing open times can narrow them to the types they actually want. Because not every open time can be booked as every private-lesson type — some times are tied to a specific type, others only take types of a matching length — the filter shows just the times bookable as the ticked types, and re-anchors the week view on the earliest one so it never opens on an empty week. Picking one of those times narrows the **Lesson type** picker on the registration form to the same list, and when only one type is left it is chosen automatically with its questions loaded. The type list starts collapsed and can be tucked away again without losing the filter; the button shows how many types are ticked. Tick nothing (or use **Show all types**) to see every open time as before. The filter is hidden when the studio only offers one private-lesson type.
+- The **Group Classes** block can now be pinned to a single class, under **Classes shown → Class** in the block sidebar (shortcode: `[us_group_classes offering="…"]`). Pick a class and the block shows only that one, so it can be embedded on a page that describes the class. In this mode the class's own description is left out to avoid repeating the page copy — the card shows the schedule, instructor, price, enrolment deadline and the enrol/withdraw controls. Leaving it on **All classes** keeps the full browsable catalog with descriptions.
+- The **Student Registration** block can now send students onward to a page of your choosing once they finish registering. Its **After email confirmation** panel is now **After registration**: the page you pick there is where the link shown to a newly registered student points — the "Sign in to your account" link after they confirm their email, and a "Continue to your account" link for an invited student, who is signed in immediately. A new **Redirect automatically** option takes them straight there instead of showing the link. Registration errors are never skipped — a failed sign-up and an expired confirmation link still show their message on the page, as does the "check your email to confirm your address" step. The redirect needs a page to be chosen; with none set, students see the link (or, for invited students, just the confirmation) as before.
+
+## [1.2.1]
+
+### Fixed
+- Registration questions, offering titles/notes, and policy names longer than their storage limit are no longer silently discarded. Previously typing a fixed-size field past its maximum length reported success but saved nothing — the database quietly rejected the over-long value. These fields now cap the input in the form, and the API rejects an over-long value with a clear error.
+- Students can no longer reach the WordPress dashboard. A student who navigates to `wp-admin` is redirected to the site front end and the admin toolbar is hidden for them, so they only ever see the studio's booking pages. Anyone who runs the studio — administrators, studio admins, and instructors — keeps full `wp-admin` access.
+- The instructor picker on the **Add/Edit Offering** form no longer comes up empty for a solo studio owner. When the person running the studio teaches from a WordPress administrator account (the default single-account setup), they now appear in the instructor dropdown and can be assigned to a class.
+
+## [1.2.0]
+
+### Added
+- Offerings can now bill on a schedule: **weekly** (a pending payment 24 hours before each lesson) or **monthly** (one payment on the 1st for that month's lessons), alongside the existing one-time and full-term modes. Applies to both private lessons and group classes. A daily job generates due payments, and each student receives one consolidated itemised email per scan; batched payments share a reference so the admin Payments queue groups them with a lump-sum total for e-transfer reconciliation. Cancelling a lesson never voids a scheduled payment.
+- Cancelling a lesson that was **already paid for** now credits the student that money instead of leaving it as a manual refund. The credit is one lesson's share of what they paid — the whole amount for a single lesson, or a per-lesson slice of a monthly charge or a full-term series. The daily billing scan automatically applies any available credit against a student's upcoming weekly/monthly charges before emailing their notice, which shows the credit applied and the reduced total due; a charge fully covered by credit is settled and leaves the admin Payments queue. A student's outstanding credit balance is shown on their **student detail** page in the studio admin. Still-pending (unpaid) payments continue to be voided on cancellation as before.
+- Group classes now carry an **enrolment deadline** the instructor sets on the offering. It defaults to the first day of the class, and once it passes students can no longer enrol — the enrolment page shows the class as closed and the API rejects late enrolments. While enrolment is open, each class card shows an "Enrol by" date.
+- Group classes now also carry a **withdrawal deadline** the instructor sets per class. Up to that day a student can withdraw themselves from the class (the group-class page shows a **Withdraw** button) — this frees their seat and voids any pending payment but does **not** credit their account. After the deadline self-withdrawal closes and the student must ask the studio, who can still withdraw them by hand from the student detail page. Leaving the deadline blank keeps self-withdrawal open indefinitely.
+- The **Add/Edit Offering** form now shows only the fields relevant to the selected kind: the group-class settings (capacity, dates, times, enrolment/withdrawal deadlines, sessions, schedule note, invite-only) appear only for a group class, and the weekly-reservation option only for a private lesson.
+- Instructors can add students to any group class by hand from its details page (**Add students directly**), which now appears for public classes too, not just invite-only ones. This bypasses the enrolment deadline and capacity, so a student can be enrolled as a **late enrolment** after the class has closed to self-enrolment.
+- Studio admins and instructors can open a **lesson detail view** from the Scheduler and My Lessons lists, showing the offering booked, the policy versions the student accepted (with acceptance time and IP), and their intake answers. On My Lessons an instructor may only open their own lessons; the studio Scheduler may open any.
+- The **Student Registration** block's "registration is by invitation only" message is now customisable, under a new **Invitation-only notice** panel (shortcode: `invite_only_message`). Leaving it blank keeps the default wording.
+
+### Changed
+- The student **upcoming lessons** panel now shows each booked offering's name and length beside the time, and lists only the soonest five lessons with a "Show all" reveal. The Scheduler and My Lessons week/list views likewise show the booked offering.
+
+### Fixed
+- Accepting an invitation now keeps the student signed in. Previously the registration form processed the submission after the page had started rendering, so the sign-in cookie was never sent and the new student was bounced back to the (logged-out) registration page; it is now handled before any output, and the student lands logged in.
+- Account-registration questions now save. On sites first installed before account-scope questions existed, the `us_questions.offering_id` column was left `NOT NULL` (the schema migration relied on `dbDelta`, which does not reliably relax a column to allow `NULL`), so saving an account question failed with "Column 'offering_id' cannot be null". A one-time, self-healing migration relaxes the column on the next load.
+
+## [1.1.1]
+
+### Fixed
+- The **Enable auto-updates** toggle now appears for the plugin on the Plugins screen. The self-updater now reports the plugin to WordPress even when it is already current, so core marks it update-supported and shows the toggle; previously the toggle was hidden between releases.
+
 ## [1.1.0]
 
 ### Added

assets/css/frontend.css

@@ -34,27 +34,84 @@
     margin-top: 8px;
 }
 
-.us-my-lessons {
+/*
+ * The upcoming-lessons panel. Every rule here is scoped under #us-booking-app —
+ * the same id-level specificity .us-slot above uses — because these rows sit in
+ * whatever layout the theme provides and carry more content than a calendar
+ * cell. Bare class selectors lost to theme rules on div/span/strong, which
+ * collapsed the flex layout and piled the details on top of the actions.
+ */
+#us-booking-app .us-my-lessons {
     margin-bottom: 24px;
 }
 
-.us-my-lesson {
+#us-booking-app .us-my-lesson {
+    box-sizing: border-box;
+    max-width: 100%;
     border: 1px solid #ddd;
     border-radius: 4px;
     padding: 12px 16px;
     margin-bottom: 8px;
     display: flex;
+    flex-wrap: wrap;
     justify-content: space-between;
     align-items: center;
+    gap: 8px 12px;
 }
 
-.us-my-lesson-actions {
+/*
+ * `min-width: 0` lets the title column shrink below its content width — without
+ * it a long offering title cannot compress and shoves the status pill and
+ * Cancel button out of the row. The flex-basis keeps the details and the
+ * actions on one line while there is room, and wraps them once there is not.
+ */
+#us-booking-app .us-my-lesson-info {
     display: flex;
-    gap: 12px;
+    flex-direction: column;
+    gap: 2px;
+    flex: 1 1 14em;
+    min-width: 0;
+}
+
+#us-booking-app .us-my-lesson-title,
+#us-booking-app .us-my-lesson-when {
+    overflow-wrap: break-word;
+    word-break: break-word;
+}
+
+#us-booking-app .us-my-lesson-title {
+    font-size: 1.05em;
+}
+
+#us-booking-app .us-my-lesson-duration {
+    font-weight: normal;
+    color: #666;
+}
+
+#us-booking-app .us-my-lesson-when {
+    color: #555;
+}
+
+#us-booking-app .us-my-lesson-actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px 12px;
     align-items: center;
 }
 
-.us-cancel-lesson {
+#us-booking-app .us-show-all-lessons {
+    background: transparent;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    padding: 6px 14px;
+    cursor: pointer;
+}
+
+#us-booking-app .us-show-all-lessons:hover {
+    border-color: #888;
+}
+
+#us-booking-app .us-cancel-lesson {
     background: transparent;
     border: 1px solid #ccc;
     border-radius: 4px;
@@ -63,32 +120,91 @@
     color: #c00;
 }
 
-.us-cancel-lesson:hover {
+#us-booking-app .us-cancel-lesson:hover {
     border-color: #c00;
 }
 
-.us-lesson-status {
+#us-booking-app .us-lesson-status {
+    display: inline-block;
     font-size: 0.85em;
     font-weight: 600;
     padding: 2px 10px;
     border-radius: 10px;
     background: #eee;
+    white-space: nowrap;
 }
 
-.us-lesson-status-confirmed {
+#us-booking-app .us-lesson-status-confirmed {
     background: #e2f5e5;
     color: #1a7d2e;
 }
 
-.us-lesson-status-pending {
+#us-booking-app .us-lesson-status-pending {
     background: #fdf3d7;
     color: #8a6d1a;
 }
 
+.us-calendar-controls {
+    display: flex;
+    flex-wrap: wrap;
+    justify-content: space-between;
+    align-items: center;
+    gap: 8px;
+    margin-bottom: 12px;
+}
+
+.us-filter-toggle {
+    padding: 6px 16px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    background: transparent;
+    cursor: pointer;
+}
+
+.us-filter-toggle.us-active {
+    background: #333;
+    border-color: #333;
+    color: #fff;
+}
+
+.us-type-filter {
+    margin-bottom: 12px;
+    padding: 8px 12px;
+    border: 1px solid #eee;
+    border-radius: 4px;
+}
+
+.us-type-filter-heading {
+    display: block;
+    margin-bottom: 6px;
+    font-weight: 600;
+}
+
+.us-type-filter-choices {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    gap: 8px 16px;
+}
+
+.us-type-filter-choice {
+    display: inline-flex;
+    align-items: center;
+    gap: 6px;
+}
+
+.us-type-filter-clear {
+    margin-left: auto;
+    padding: 4px 12px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    background: transparent;
+    cursor: pointer;
+}
+
 .us-view-toggle {
     display: flex;
     gap: 8px;
-    margin-bottom: 12px;
 }
 
 .us-view-toggle button {
@@ -152,6 +268,102 @@
     opacity: 0.4;
 }
 
+/* The price and pay agreement on a booking / enrolment form. */
+.us-price {
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    padding: 12px 16px;
+    margin: 16px 0;
+}
+
+.us-price h4 {
+    margin: 0 0 8px;
+}
+
+.us-price p {
+    margin: 0 0 4px;
+}
+
+.us-price-amount strong {
+    font-size: 1.15em;
+}
+
+.us-price-cadence {
+    margin-left: 4px;
+}
+
+.us-price-tax,
+.us-price-note {
+    font-size: 0.9em;
+    opacity: 0.8;
+}
+
+.us-price-agree {
+    display: block;
+    margin-top: 12px;
+    font-weight: 600;
+}
+
+/* The cadence-carrying price on a group-class card. */
+.us-class-price {
+    font-weight: 600;
+}
+
+/* Policy acceptance — booking, enrolment, and signup all render this markup. */
+.us-policy {
+    margin: 16px 0;
+}
+
+.us-policy h4 {
+    margin: 0 0 6px;
+}
+
+/*
+ * The body is admin-authored HTML sitting inside whatever layout the theme
+ * provides, so it gets an explicit reading box rather than inheriting one.
+ * `overflow-wrap` breaks pasted URLs instead of letting one long token force
+ * the horizontal scrollbar, and the bounded height keeps a long policy from
+ * pushing the accept checkbox off the screen.
+ */
+.us-policy-body {
+    box-sizing: border-box;
+    max-width: 100%;
+    max-height: 260px;
+    overflow-y: auto;
+    overflow-x: hidden;
+    padding: 12px 14px;
+    margin-bottom: 8px;
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    background: #fafafa;
+    white-space: normal;
+    overflow-wrap: break-word;
+    word-break: break-word;
+    line-height: 1.5;
+    text-align: left;
+}
+
+.us-policy-body p,
+.us-policy-body ul,
+.us-policy-body ol {
+    margin: 0 0 0.75em;
+    max-width: 100%;
+}
+
+.us-policy-body ul,
+.us-policy-body ol {
+    padding-left: 1.5em;
+}
+
+.us-policy-body > :last-child {
+    margin-bottom: 0;
+}
+
+.us-policy-accept,
+.us-policies input[type="checkbox"] {
+    margin-right: 6px;
+}
+
 @media (max-width: 640px) {
     .us-week-grid {
         grid-template-columns: 1fr;
@@ -160,6 +372,20 @@
     .us-week-day {
         min-height: 0;
     }
+
+    /*
+     * A lesson row carries a title, a date/time, a status pill and a button —
+     * more than fits one narrow line, so stack the details above the actions
+     * rather than letting them wrap into each other.
+     */
+    #us-booking-app .us-my-lesson {
+        flex-direction: column;
+        align-items: stretch;
+    }
+
+    #us-booking-app .us-my-lesson-info {
+        flex: 0 0 auto;
+    }
 }
 
 /* Shown only in block-editor previews (see BlockPreview). */

assets/js/blocks.js

@@ -5,7 +5,7 @@
     const { registerBlockType } = wp.blocks;
     const { createElement: el, useState, useEffect } = wp.element;
     const { useBlockProps, InspectorControls } = wp.blockEditor;
-    const { PanelBody, SelectControl, ToggleControl } = wp.components;
+    const { PanelBody, SelectControl, ToggleControl, TextareaControl } = wp.components;
     const { useSelect } = wp.data;
     const apiFetch = wp.apiFetch;
     const ServerSideRender = wp.serverSideRender;
@@ -83,6 +83,47 @@
         });
     }
 
+    /**
+     * Dropdown of active private-lesson types fetched from the plugin's public
+     * offerings endpoint. Values are offering IDs; 0 means every type.
+     */
+    function LessonTypeSelect(props) {
+        const [offerings, setOfferings] = useState(null);
+
+        useEffect(() => {
+            apiFetch({ path: '/us-scheduler/v1/offerings?kind=private_lesson' })
+                .then(setOfferings)
+                .catch(() => setOfferings([]));
+        }, []);
+
+        const options = [{ label: __('All lesson types', 'unsupervised-schedular'), value: '0' }].concat(
+            (offerings || []).map((o) => ({
+                label: o.duration_minutes
+                    ? `${o.title} (${o.duration_minutes} min)`
+                    : (o.title || __('(no title)', 'unsupervised-schedular')),
+                value: String(o.id),
+            }))
+        );
+
+        // A previously chosen type that is no longer offered keeps its stored
+        // id visible instead of silently pretending "All lesson types" is set.
+        const value = String(props.value || 0);
+        if (offerings !== null && !options.some((opt) => opt.value === value)) {
+            options.push({
+                label: __('Unavailable lesson type #', 'unsupervised-schedular') + value,
+                value: value,
+            });
+        }
+
+        return el(SelectControl, {
+            label: props.label,
+            help: props.help,
+            value: value,
+            options: options,
+            onChange: (newValue) => props.onChange(parseInt(newValue, 10) || 0),
+        });
+    }
+
     const blocks = [
         {
             name: 'us-scheduler/booking',
@@ -94,24 +135,60 @@
             attributes: {
                 loginPageId: { type: 'number', default: 0 },
                 autoRedirect: { type: 'boolean', default: false },
+                lessonTypeId: { type: 'number', default: 0 },
+                showTypeFilter: { type: 'boolean', default: true },
+                displayMode: { type: 'string', default: 'both' },
             },
-            inspector: (attributes, setAttributes) => el(
-                PanelBody,
-                { title: __('Logged-out visitors', 'unsupervised-schedular') },
-                el(PageSelect, {
-                    label: __('Login page', 'unsupervised-schedular'),
-                    help: __('Where the log-in link sends visitors who are not logged in.', 'unsupervised-schedular'),
-                    defaultLabel: __('WordPress login screen', 'unsupervised-schedular'),
-                    value: attributes.loginPageId,
-                    onChange: (loginPageId) => setAttributes({ loginPageId }),
-                }),
-                el(ToggleControl, {
-                    label: __('Redirect automatically', 'unsupervised-schedular'),
-                    help: __('Send logged-out visitors straight to the login page instead of showing a link.', 'unsupervised-schedular'),
-                    checked: !!attributes.autoRedirect,
-                    onChange: (autoRedirect) => setAttributes({ autoRedirect }),
-                })
-            ),
+            inspector: (attributes, setAttributes) => [
+                el(
+                    PanelBody,
+                    { title: __('What to show', 'unsupervised-schedular'), key: 'display' },
+                    el(SelectControl, {
+                        label: __('Sections', 'unsupervised-schedular'),
+                        help: __('Split the page in two: a booking calendar here, the student’s upcoming lessons somewhere else.', 'unsupervised-schedular'),
+                        value: attributes.displayMode || 'both',
+                        options: [
+                            { label: __('Booking and upcoming lessons', 'unsupervised-schedular'), value: 'both' },
+                            { label: __('Booking only', 'unsupervised-schedular'), value: 'booking' },
+                            { label: __('Upcoming lessons only', 'unsupervised-schedular'), value: 'upcoming' },
+                        ],
+                        onChange: (displayMode) => setAttributes({ displayMode }),
+                    })
+                ),
+                el(
+                    PanelBody,
+                    { title: __('Lesson types', 'unsupervised-schedular'), key: 'lesson-types' },
+                    el(LessonTypeSelect, {
+                        label: __('Lesson type', 'unsupervised-schedular'),
+                        help: __('Show only the times bookable as one lesson type, for embedding on a page dedicated to it. That type is then the only one students can book here.', 'unsupervised-schedular'),
+                        value: attributes.lessonTypeId,
+                        onChange: (lessonTypeId) => setAttributes({ lessonTypeId }),
+                    }),
+                    el(ToggleControl, {
+                        label: __('Show the lesson-type filter', 'unsupervised-schedular'),
+                        help: __('Offer students the “Show Only” button that narrows the calendar to chosen lesson types. Not used when a single lesson type is set above.', 'unsupervised-schedular'),
+                        checked: attributes.showTypeFilter !== false,
+                        onChange: (showTypeFilter) => setAttributes({ showTypeFilter }),
+                    })
+                ),
+                el(
+                    PanelBody,
+                    { title: __('Logged-out visitors', 'unsupervised-schedular'), key: 'logged-out' },
+                    el(PageSelect, {
+                        label: __('Login page', 'unsupervised-schedular'),
+                        help: __('Where the log-in link sends visitors who are not logged in.', 'unsupervised-schedular'),
+                        defaultLabel: __('WordPress login screen', 'unsupervised-schedular'),
+                        value: attributes.loginPageId,
+                        onChange: (loginPageId) => setAttributes({ loginPageId }),
+                    }),
+                    el(ToggleControl, {
+                        label: __('Redirect automatically', 'unsupervised-schedular'),
+                        help: __('Send logged-out visitors straight to the login page instead of showing a link.', 'unsupervised-schedular'),
+                        checked: !!attributes.autoRedirect,
+                        onChange: (autoRedirect) => setAttributes({ autoRedirect }),
+                    })
+                ),
+            ],
         },
         {
             name: 'us-scheduler/student-login',
@@ -151,18 +228,38 @@
             shortcode: 'us_student_register',
             attributes: {
                 loginPageId: { type: 'number', default: 0 },
+                autoRedirect: { type: 'boolean', default: false },
+                inviteOnlyMessage: { type: 'string', default: '' },
             },
-            inspector: (attributes, setAttributes) => el(
-                PanelBody,
-                { title: __('After email confirmation', 'unsupervised-schedular') },
-                el(PageSelect, {
-                    label: __('Sign-in page', 'unsupervised-schedular'),
-                    help: __('Where the sign-in link shown after a student confirms their email address sends them.', 'unsupervised-schedular'),
-                    defaultLabel: __('WordPress login screen', 'unsupervised-schedular'),
-                    value: attributes.loginPageId,
-                    onChange: (loginPageId) => setAttributes({ loginPageId }),
-                })
-            ),
+            inspector: (attributes, setAttributes) => [
+                el(
+                    PanelBody,
+                    { title: __('After registration', 'unsupervised-schedular'), key: 'confirmation' },
+                    el(PageSelect, {
+                        label: __('Sign-in page', 'unsupervised-schedular'),
+                        help: __('Where students are sent once registration finishes — after they confirm their email address, or straight away for an invited student.', 'unsupervised-schedular'),
+                        defaultLabel: __('WordPress login screen', 'unsupervised-schedular'),
+                        value: attributes.loginPageId,
+                        onChange: (loginPageId) => setAttributes({ loginPageId }),
+                    }),
+                    el(ToggleControl, {
+                        label: __('Redirect automatically', 'unsupervised-schedular'),
+                        help: __('Send students straight to that page instead of showing the link. Requires a page to be chosen; errors and the "check your email" step are never skipped.', 'unsupervised-schedular'),
+                        checked: !!attributes.autoRedirect,
+                        onChange: (autoRedirect) => setAttributes({ autoRedirect }),
+                    })
+                ),
+                el(
+                    PanelBody,
+                    { title: __('Invitation-only notice', 'unsupervised-schedular'), key: 'invite-only' },
+                    el(TextareaControl, {
+                        label: __('Message', 'unsupervised-schedular'),
+                        help: __('Shown when registration is invite-only and the visitor has no valid invite link. Leave blank to use the default wording.', 'unsupervised-schedular'),
+                        value: attributes.inviteOnlyMessage,
+                        onChange: (inviteOnlyMessage) => setAttributes({ inviteOnlyMessage }),
+                    })
+                ),
+            ],
         },
         {
             name: 'us-scheduler/group-classes',
@@ -179,7 +276,7 @@
                 { title: __('Classes shown', 'unsupervised-schedular') },
                 el(GroupClassSelect, {
                     label: __('Class', 'unsupervised-schedular'),
-                    help: __('Show only one group class, for embedding on a page dedicated to it.', 'unsupervised-schedular'),
+                    help: __('Show only one group class, for embedding on a page dedicated to it. That class’s description is left out — the card shows just the schedule, price and enrolment controls.', 'unsupervised-schedular'),
                     value: attributes.offeringId,
                     onChange: (offeringId) => setAttributes({ offeringId }),
                 })

assets/js/booking.js

@@ -11,6 +11,11 @@
     const errorBox  = document.getElementById('us-booking-error');
     const { restUrl, nonce } = usScheduler;
 
+    // Per-instance options from the block/shortcode: pin the page to a single
+    // lesson type, and whether the "Show Only" filter is offered at all.
+    const pinnedTypeId  = Number(app.dataset.lessonType) || 0;
+    const filterEnabled = app.dataset.typeFilter !== '0';
+
     function apiFetch(path, options = {}) {
         return fetch(restUrl + path, {
             ...options,
@@ -81,6 +86,45 @@
     let view      = 'week';
     let weekStart = null;
 
+    // Every active private-lesson type the student may book, across instructors.
+    let catalog = [];
+
+    // Lesson types the student has filtered the calendar down to; empty means
+    // "no filter" — every open slot is shown. The list starts collapsed behind
+    // the "Show Only" button and stays open across re-renders once revealed.
+    const selectedTypeIds = new Set();
+    let filterOpen = false;
+
+    // Whether an offering can be booked into a slot — the client-side mirror of
+    // the rule `POST /bookings` enforces: a slot tied to an offering takes that
+    // offering only, and a generic slot takes any of its instructor's types
+    // whose length fits.
+    function offeringFitsSlot(offering, slot) {
+        if (Number(offering.instructor_id) !== Number(slot.instructor_id)) return false;
+
+        const tiedId = Number(slot.offering_id) || 0;
+        if (tiedId) return Number(offering.id) === tiedId;
+
+        return !offering.duration_minutes
+            || Number(offering.duration_minutes) === Number(slot.duration_minutes);
+    }
+
+    const filterActive = () => selectedTypeIds.size > 0;
+
+    const typeSelected = (offering) => !filterActive() || selectedTypeIds.has(Number(offering.id));
+
+    // The lesson types this slot could be booked as, honouring the filter.
+    function slotChoices(slot) {
+        return catalog.filter((o) => offeringFitsSlot(o, slot) && typeSelected(o));
+    }
+
+    // With a filter set, a slot is only shown when one of the chosen lesson
+    // types can actually be booked into it.
+    function visibleSlots() {
+        if (!filterActive()) return allSlots;
+        return allSlots.filter((slot) => slotChoices(slot).length > 0);
+    }
+
     const pad   = (n) => String(n).padStart(2, '0');
     const toKey = (d) => `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
 
@@ -98,17 +142,67 @@
         return addDays(key, -((date.getDay() - startOfWeek + 7) % 7));
     }
 
-    function toggleHtml() {
+    // The calendar's control row: the view toggle, and the button that reveals
+    // the lesson-type filter beneath it.
+    function controlsHtml() {
         return `
-            <div class="us-view-toggle" role="group" aria-label="Calendar view">
-                <button type="button" id="us-view-list" class="${view === 'list' ? 'us-active' : ''}">List</button>
-                <button type="button" id="us-view-week" class="${view === 'week' ? 'us-active' : ''}">Week</button>
+            <div class="us-calendar-controls">
+                <div class="us-view-toggle" role="group" aria-label="Calendar view">
+                    <button type="button" id="us-view-list" class="${view === 'list' ? 'us-active' : ''}">List</button>
+                    <button type="button" id="us-view-week" class="${view === 'week' ? 'us-active' : ''}">Week</button>
+                </div>
+                ${filterToggleHtml()}
+            </div>`;
+    }
+
+    // Nothing to filter with a single bookable type, so the control only
+    // appears once there is a choice to make.
+    function filterToggleHtml() {
+        if (!filterEnabled || catalog.length < 2) return '';
+
+        const count = filterActive() ? ` (${selectedTypeIds.size})` : '';
+
+        return `
+            <button type="button" id="us-filter-toggle" class="us-filter-toggle${filterActive() ? ' us-active' : ''}"
+                aria-expanded="${filterOpen}" aria-controls="us-type-filter">Show Only${count}</button>`;
+    }
+
+    // "Piano Lesson (30 min)" — the instructor's name is only worth the space
+    // when the catalog spans more than one of them.
+    function filterLabel(offering) {
+        const duration = offering.duration_minutes ? ` (${offering.duration_minutes} min)` : '';
+        const instructors = new Set(catalog.map((o) => Number(o.instructor_id)));
+        const who = instructors.size > 1 && offering.instructor_name
+            ? ` — ${offering.instructor_name}`
+            : '';
+        return `${offering.title}${duration}${who}`;
+    }
+
+    // The lesson-type list itself — collapsed until the student opens it, and
+    // rendered between the control row and the calendar.
+    function filterHtml() {
+        if (!filterEnabled || catalog.length < 2 || !filterOpen) return '';
+
+        const choices = catalog.map((o) => `
+            <label class="us-type-filter-choice">
+                <input type="checkbox" class="us-type-filter-option" value="${o.id}" ${selectedTypeIds.has(Number(o.id)) ? 'checked' : ''}>
+                ${escHtml(filterLabel(o))}
+            </label>
+        `).join('');
+
+        return `
+            <div class="us-type-filter" id="us-type-filter" role="group" aria-label="Filter by lesson type">
+                <span class="us-type-filter-heading">Lesson type</span>
+                <div class="us-type-filter-choices">
+                    ${choices}
+                    ${filterActive() ? '<button type="button" id="us-type-filter-clear" class="us-type-filter-clear">Show all types</button>' : ''}
+                </div>
             </div>`;
     }
 
     // Agenda-style calendar: available slots grouped by day.
-    function listHtml() {
-        return groupByDay(allSlots).map(([key, daySlots]) => `
+    function listHtml(slots) {
+        return groupByDay(slots).map(([key, daySlots]) => `
             <div class="us-day">
                 <h3 class="us-day-heading">${escHtml(dayLabel(key))}</h3>
                 ${daySlots.map((slot) => `
@@ -122,8 +216,8 @@
     }
 
     // Weekly calendar: seven day columns with a bookable button per slot.
-    function weekHtml() {
-        const byDay = new Map(groupByDay(allSlots));
+    function weekHtml(slots) {
+        const byDay = new Map(groupByDay(slots));
         const days  = [...Array(7).keys()].map((i) => addDays(weekStart, i));
 
         const columns = days.map((key) => {
@@ -151,20 +245,41 @@
     }
 
     function render() {
+        const slots = visibleSlots();
+
+        // The pinned lesson type is no longer on offer (deactivated or
+        // deleted), so this page has nothing it is allowed to book.
+        if (pinnedTypeId && !catalog.length) {
+            slotList.innerHTML = '<p>This lesson type is not available for booking right now.</p>';
+            return;
+        }
+
+        // Nothing open at all: there is nothing for the controls to act on.
         if (!allSlots.length) {
             slotList.innerHTML = '<p>No available lesson slots at this time.</p>';
             return;
         }
 
-        // Anchor the week view to the week of the earliest open slot (the API
-        // returns slots ordered by start), so the first look is never empty.
-        if (view === 'week' && !weekStart) weekStart = weekStartOf(dayKey(allSlots[0].start_dt));
+        if (!slots.length) {
+            const message = pinnedTypeId
+                ? '<p>No open times for this lesson type right now.</p>'
+                : '<p>No open times match the selected lesson types.</p>';
 
-        slotList.innerHTML = toggleHtml() + (view === 'week' ? weekHtml() : listHtml());
+            slotList.innerHTML = controlsHtml() + filterHtml() + message;
+            wireControlEvents();
+            return;
+        }
+
+        // Anchor the week view to the week of the earliest matching slot (the
+        // API returns slots ordered by start), so the first look is never empty.
+        if (view === 'week' && !weekStart) weekStart = weekStartOf(dayKey(slots[0].start_dt));
+
+        slotList.innerHTML = controlsHtml() + filterHtml() + (view === 'week' ? weekHtml(slots) : listHtml(slots));
+        wireControlEvents();
         wireCalendarEvents();
     }
 
-    function wireCalendarEvents() {
+    function wireControlEvents() {
         document.getElementById('us-view-list').addEventListener('click', () => {
             view = 'list';
             render();
@@ -174,6 +289,40 @@
             render();
         });
 
+        const toggle = document.getElementById('us-filter-toggle');
+        if (toggle) {
+            toggle.addEventListener('click', () => {
+                filterOpen = !filterOpen;
+                render();
+            });
+        }
+
+        slotList.querySelectorAll('.us-type-filter-option').forEach((input) => {
+            input.addEventListener('change', () => {
+                const id = Number(input.value);
+                if (input.checked) {
+                    selectedTypeIds.add(id);
+                } else {
+                    selectedTypeIds.delete(id);
+                }
+                // The nearest matching time may be weeks away, so re-anchor the
+                // week view instead of leaving the student on an empty week.
+                weekStart = null;
+                render();
+            });
+        });
+
+        const clear = document.getElementById('us-type-filter-clear');
+        if (clear) {
+            clear.addEventListener('click', () => {
+                selectedTypeIds.clear();
+                weekStart = null;
+                render();
+            });
+        }
+    }
+
+    function wireCalendarEvents() {
         const prev = document.getElementById('us-week-prev');
         const next = document.getElementById('us-week-next');
         if (prev) prev.addEventListener('click', () => { weekStart = addDays(weekStart, -7); render(); });
@@ -211,39 +360,34 @@
             </div>`;
     }
 
-    // Active private-lesson offerings per instructor, so revisiting the
-    // registration form does not refetch the same catalog.
-    const offeringCache = new Map();
-
-    function instructorOfferings(instructorId) {
-        if (offeringCache.has(instructorId)) {
-            return Promise.resolve(offeringCache.get(instructorId));
-        }
-        return apiFetch(`offerings?instructor_id=${instructorId}&kind=private_lesson`).then((list) => {
-            offeringCache.set(instructorId, list);
-            return list;
-        });
-    }
-
-    // "Piano Lesson (60 min — $50.00 CAD)" / "Trial Lesson (Free)"
+    // "Piano Lesson (60 min — 50.00 CAD at booking)" / "Trial Lesson (Free)"
     function offeringLabel(o) {
         const duration = o.duration_minutes ? `${o.duration_minutes} min — ` : '';
-        const price = Number(o.price) > 0
-            ? `$${Number(o.price).toFixed(2)} ${o.currency}`
-            : 'Free';
-        return `${o.title} (${duration}${price})`;
+        return `${o.title} (${duration}${window.usPricing.priceLabel(o)})`;
+    }
+
+    // How many lessons a weekly reservation can claim, mirroring
+    // BookingEndpoint::MAX_WEEKLY_OCCURRENCES so the quoted total is never
+    // higher than the server will actually charge for.
+    const MAX_WEEKLY_OCCURRENCES = 12;
+
+    // The open times a weekly reservation of this slot would claim: every
+    // still-unbooked slot of its recurring group, capped the way the server
+    // caps it. Some may be taken by another student first, so this is the
+    // upper bound on what will be booked, not a guarantee.
+    function weeklyOccurrences(slot) {
+        if (!slot.recurrence_group) return 1;
+
+        const inGroup = allSlots.filter((s) => s.recurrence_group === slot.recurrence_group).length;
+
+        return Math.min(Math.max(inGroup, 1), MAX_WEEKLY_OCCURRENCES);
     }
 
     function openRegistration(slot) {
         clearError();
 
-        Promise.all([
-            instructorOfferings(Number(slot.instructor_id)),
-            apiFetch('policies?scope=booking'),
-        ])
-            .then(([offerings, policies]) => {
-                renderRegistration(slot, offerings, policies);
-            })
+        apiFetch('policies?scope=booking')
+            .then((policies) => renderRegistration(slot, policies))
             .catch((err) => showError(err.message));
     }
 
@@ -258,6 +402,19 @@
                     <select id="us-offering" disabled><option>${escHtml(label)}</option></select></label>
                 </p>`;
         }
+
+        // Only one type is left to book this slot as — usually because the
+        // filter narrowed it down — so it is chosen for the student.
+        if (choices.length === 1) {
+            return `
+                <p class="us-offering">
+                    <label>Lesson type<br>
+                    <select id="us-offering" required>
+                        <option value="${choices[0].id}" selected>${escHtml(offeringLabel(choices[0]))}</option>
+                    </select></label>
+                </p>`;
+        }
+
         return `
             <p class="us-offering">
                 <label>Lesson type<br>
@@ -268,14 +425,13 @@
             </p>`;
     }
 
-    function renderRegistration(slot, offerings, policies) {
+    function renderRegistration(slot, policies) {
         const tiedId = Number(slot.offering_id) || 0;
-        const tied   = tiedId ? offerings.find((o) => Number(o.id) === tiedId) : null;
+        const tied   = tiedId ? catalog.find((o) => Number(o.id) === tiedId) : null;
 
-        // Generic slots offer every lesson type that fits the slot's length.
-        const choices = tiedId
-            ? []
-            : offerings.filter((o) => !o.duration_minutes || Number(o.duration_minutes) === Number(slot.duration_minutes));
+        // Generic slots offer every lesson type that fits the slot — narrowed to
+        // the filtered types when the student has set a filter.
+        const choices = tiedId ? [] : slotChoices(slot);
 
         if (!tiedId && !choices.length) {
             // The server rejects offering-less bookings, so without a matching
@@ -301,6 +457,7 @@
                     <div id="us-questions"></div>
                     ${policies.map(policyField).join('')}
                     ${weekly}
+                    <div id="us-price-summary"></div>
                     <p>
                         <button type="submit" class="us-book-btn">Confirm Booking</button>
                         <button type="button" id="us-cancel" class="us-cancel-btn">Back</button>
@@ -309,11 +466,34 @@
             </div>`;
 
         // The intake questions belong to the selected offering, so they follow
-        // the picker instead of being fixed at render time.
-        let selectedId = tiedId;
+        // the picker instead of being fixed at render time. A tied slot — or a
+        // lone remaining type — is already decided, so its questions load
+        // straight away.
+        let selectedId = tiedId || (choices.length === 1 ? Number(choices[0].id) : 0);
         let questions  = [];
 
         const questionsBox = document.getElementById('us-questions');
+        const priceBox     = document.getElementById('us-price-summary');
+        const weeklyEl     = document.getElementById('us-weekly');
+
+        // What the booking will cost and the agreement to pay it, restated
+        // whenever the choices that decide the amount change: the lesson type
+        // carries the price, and a weekly reservation multiplies a per-lesson
+        // one-time price by every week it claims. A slot tied to a type the
+        // catalog no longer carries has no price to quote, so it shows nothing
+        // rather than a figure it cannot stand behind.
+        function renderPrice() {
+            const offering = selectedId ? catalog.find((o) => Number(o.id) === selectedId) : null;
+            priceBox.innerHTML = offering
+                ? window.usPricing.summaryHtml({
+                    price: offering.price,
+                    currency: offering.currency,
+                    billing_mode: offering.billing_mode,
+                    kind: offering.kind,
+                    occurrences: weeklyEl && weeklyEl.checked ? weeklyOccurrences(slot) : 1,
+                })
+                : '';
+        }
 
         function loadQuestions() {
             questions = [];
@@ -331,10 +511,14 @@
             document.getElementById('us-offering').addEventListener('change', (e) => {
                 selectedId = Number(e.target.value) || 0;
                 loadQuestions();
+                renderPrice();
             });
         }
 
+        if (weeklyEl) weeklyEl.addEventListener('change', renderPrice);
+
         loadQuestions();
+        renderPrice();
 
         document.getElementById('us-cancel').addEventListener('click', loadSlots);
         document.getElementById('us-register-form').addEventListener('submit', (e) => {
@@ -343,6 +527,10 @@
                 showError('Please choose a lesson type.');
                 return;
             }
+            if (!window.usPricing.agreed(e.target)) {
+                showError(window.usPricing.AGREE_REQUIRED);
+                return;
+            }
             submitBooking(e.target, slot, selectedId, questions);
         });
     }
@@ -388,6 +576,28 @@
         return status.charAt(0).toUpperCase() + status.slice(1);
     }
 
+    // How many upcoming lessons to show before the "Show all" reveal.
+    const INITIAL_LESSON_COUNT = 5;
+
+    function lessonRowHtml(l) {
+        const title    = l.offering_title ? escHtml(String(l.offering_title)) : 'Lesson';
+        const duration = l.duration_minutes ? ` <span class="us-my-lesson-duration">(${escHtml(String(l.duration_minutes))} min)</span>` : '';
+        // The two columns are divs, not spans: as spans the layout only held up
+        // while the stylesheet's display:flex won, and a theme rule on span
+        // collapsed the row onto itself.
+        return `
+            <div class="us-my-lesson">
+                <div class="us-my-lesson-info">
+                    <strong class="us-my-lesson-title">${title}${duration}</strong>
+                    <span class="us-my-lesson-when">${escHtml(dayLabel(dayKey(l.start_dt)))} · ${escHtml(timeOf(l.start_dt))}–${escHtml(timeOf(l.end_dt))}</span>
+                </div>
+                <div class="us-my-lesson-actions">
+                    <span class="us-lesson-status us-lesson-status-${escHtml(String(l.status))}">${escHtml(lessonStatusLabel(String(l.status)))}</span>
+                    <button type="button" class="us-cancel-lesson" data-lesson-id="${l.id}">Cancel</button>
+                </div>
+            </div>`;
+    }
+
     function renderMyLessons(lessons) {
         const upcoming = lessons.filter((l) => l.start_dt);
         if (!upcoming.length) {
@@ -395,20 +605,30 @@
             return;
         }
 
+        // Show only the soonest few by default; the rest sit hidden behind a
+        // reveal so a busy student's list stays short.
+        const visible = upcoming.slice(0, INITIAL_LESSON_COUNT);
+        const hidden  = upcoming.slice(INITIAL_LESSON_COUNT);
+
         myLessons.innerHTML = `
             <div class="us-my-lessons">
                 <h3>Your upcoming lessons</h3>
-                ${upcoming.map((l) => `
-                    <div class="us-my-lesson">
-                        <span>${escHtml(dayLabel(dayKey(l.start_dt)))} · ${escHtml(timeOf(l.start_dt))}–${escHtml(timeOf(l.end_dt))}</span>
-                        <span class="us-my-lesson-actions">
-                            <span class="us-lesson-status us-lesson-status-${escHtml(String(l.status))}">${escHtml(lessonStatusLabel(String(l.status)))}</span>
-                            <button type="button" class="us-cancel-lesson" data-lesson-id="${l.id}">Cancel</button>
-                        </span>
-                    </div>
-                `).join('')}
+                ${visible.map(lessonRowHtml).join('')}
+                ${hidden.length ? `
+                    <div class="us-my-lessons-more" hidden>${hidden.map(lessonRowHtml).join('')}</div>
+                    <button type="button" class="us-show-all-lessons">Show all ${upcoming.length} lessons</button>
+                ` : ''}
             </div>`;
 
+        const moreBox = myLessons.querySelector('.us-my-lessons-more');
+        const showAll = myLessons.querySelector('.us-show-all-lessons');
+        if (showAll && moreBox) {
+            showAll.addEventListener('click', () => {
+                moreBox.hidden = false;
+                showAll.remove();
+            });
+        }
+
         myLessons.querySelectorAll('.us-cancel-lesson').forEach((btn) => {
             btn.addEventListener('click', () => cancelLesson(Number(btn.dataset.lessonId)));
         });
@@ -438,13 +658,39 @@
         confirm.style.display = 'block';
     }
 
+    // The private-lesson catalog drives both the filter and the registration
+    // form's lesson-type picker, and it does not change while the student
+    // browses — so it is fetched once and kept.
+    let catalogLoaded = false;
+
+    function loadCatalog() {
+        if (catalogLoaded) return Promise.resolve(catalog);
+        return apiFetch('offerings?kind=private_lesson').then((list) => {
+            // A pinned lesson type is the only one this page may book, so the
+            // catalog is narrowed to it and the filter is fixed on it. With a
+            // single type left the "Show Only" control hides itself.
+            catalog = pinnedTypeId
+                ? list.filter((o) => Number(o.id) === pinnedTypeId)
+                : list;
+
+            if (pinnedTypeId) selectedTypeIds.add(pinnedTypeId);
+
+            catalogLoaded = true;
+            return catalog;
+        });
+    }
+
     function loadSlots() {
         clearError();
+        loadMyLessons();
+
+        // An upcoming-lessons-only embed has no calendar to fill.
+        if (!slotList) return;
+
         slotList.style.display = 'block';
         confirm.style.display = 'none';
-        loadMyLessons();
-        apiFetch('availability')
-            .then((slots) => {
+        Promise.all([apiFetch('availability'), loadCatalog()])
+            .then(([slots]) => {
                 allSlots = slots;
                 render();
             })

assets/js/group-classes.js

@@ -12,6 +12,9 @@
 
     // When the shortcode/block pins a single offering, only that class is
     // shown, so the page can be embedded alongside a full class description.
+    // The class's own description is then omitted from the card — the page it
+    // sits on already describes the class — leaving the schedule, price and
+    // enrolment controls.
     const singleOfferingId = Number(app.dataset.offering || 0);
 
     function apiFetch(path, options = {}) {
@@ -103,7 +106,34 @@
         return [termLabel(o), timeLabel(o)].filter(Boolean).join(' · ');
     }
 
-    function renderClasses(offerings, enrolledOfferingIds) {
+    // Today as a Y-m-d string in the visitor's local timezone, for lexicographic
+    // comparison against the class's Y-m-d enrolment deadline.
+    function todayYmd() {
+        const now = new Date();
+        return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}-${String(now.getDate()).padStart(2, '0')}`;
+    }
+
+    // The effective enrolment deadline: the instructor's set deadline, or the
+    // first class day by default. Empty when the class has no dates at all.
+    function enrolmentDeadline(o) {
+        return o.enrollment_deadline || o.term_start || '';
+    }
+
+    // Enrolment closes at the end of the deadline day. Mirrors the server-side
+    // Offering::isEnrollmentOpen() gate.
+    function isEnrollmentOpen(o) {
+        const deadline = enrolmentDeadline(o);
+        return !deadline || todayYmd() <= deadline;
+    }
+
+    // Self-withdrawal closes at the end of the withdrawal-deadline day. Unlike
+    // enrolment there is no implicit default: an unset deadline keeps withdrawal
+    // open. Mirrors the server-side Offering::isWithdrawalOpen() gate.
+    function isWithdrawalOpen(o) {
+        return !o.withdrawal_deadline || todayYmd() <= o.withdrawal_deadline;
+    }
+
+    function renderClasses(offerings, enrolledMap) {
         let groups = offerings.filter((o) => o.kind === 'group_class');
         if (singleOfferingId) {
             groups = groups.filter((o) => Number(o.id) === singleOfferingId);
@@ -121,11 +151,19 @@
                 ${whenLabel(o) ? `<p class="us-class-when">${escHtml(whenLabel(o))}</p>` : ''}
                 ${o.instructor_name ? `<p class="us-class-instructor">With ${escHtml(o.instructor_name)}</p>` : ''}
                 ${o.schedule_note ? `<p>${escHtml(o.schedule_note)}</p>` : ''}
-                ${o.description ? `<p>${escHtml(o.description)}</p>` : ''}
-                <p>${escHtml(Number(o.price).toFixed(2))} ${escHtml(o.currency)}</p>
-                ${enrolledOfferingIds.has(Number(o.id))
-        ? '<p class="us-enrolled"><strong>You are enrolled in this class.</strong></p>'
-        : `<button data-offering-id="${o.id}" class="us-enrol-btn">Enrol</button>`}
+                ${!singleOfferingId && o.description ? `<p>${escHtml(o.description)}</p>` : ''}
+                <p class="us-class-price">${escHtml(window.usPricing.priceLabel(o))}</p>
+                ${!enrolledMap.has(Number(o.id)) && isEnrollmentOpen(o) && enrolmentDeadline(o)
+        ? `<p class="us-enrol-deadline">Enrol by ${escHtml(formatDate(enrolmentDeadline(o)))}</p>`
+        : ''}
+                ${enrolledMap.has(Number(o.id))
+        ? `<p class="us-enrolled"><strong>You are enrolled in this class.</strong></p>
+                ${isWithdrawalOpen(o)
+            ? `<button data-enrollment-id="${enrolledMap.get(Number(o.id))}" class="us-withdraw-btn">Withdraw</button>`
+            : '<p class="us-withdraw-closed">Withdrawal has closed — contact the studio to withdraw.</p>'}`
+        : (isEnrollmentOpen(o)
+            ? `<button data-offering-id="${o.id}" class="us-enrol-btn">Enrol</button>`
+            : '<p class="us-enrol-closed"><strong>Enrolment has closed.</strong></p>')}
             </div>
         `).join('');
 
@@ -133,6 +171,20 @@
             const offering = groups.find((o) => String(o.id) === btn.dataset.offeringId);
             btn.addEventListener('click', () => openEnrolment(offering));
         });
+
+        list.querySelectorAll('.us-withdraw-btn').forEach((btn) => {
+            btn.addEventListener('click', () => withdraw(btn.dataset.enrollmentId));
+        });
+    }
+
+    function withdraw(enrollmentId) {
+        clearError();
+        if (!window.confirm('Withdraw from this class? Your seat is released and any pending payment is cancelled.')) {
+            return;
+        }
+        apiFetch(`enrollments/${enrollmentId}/withdraw`, { method: 'POST' })
+            .then(loadClasses)
+            .catch((err) => showError(err.message));
     }
 
     function openEnrolment(offering) {
@@ -152,6 +204,7 @@
                 <form id="us-enrol-form">
                     ${questions.map(questionField).join('')}
                     ${policies.map(policyField).join('')}
+                    ${window.usPricing.summaryHtml(offering)}
                     <p>
                         <button type="submit" class="us-enrol-btn">Confirm Enrolment</button>
                         <button type="button" id="us-group-cancel" class="us-cancel-btn">Back</button>
@@ -162,6 +215,10 @@
         document.getElementById('us-group-cancel').addEventListener('click', loadClasses);
         document.getElementById('us-enrol-form').addEventListener('submit', (e) => {
             e.preventDefault();
+            if (!window.usPricing.agreed(e.target)) {
+                showError(window.usPricing.AGREE_REQUIRED);
+                return;
+            }
             submitEnrolment(e.target, offering, questions);
         });
     }
@@ -215,9 +272,9 @@
         ])
             .then(([offerings, enrollments]) => renderClasses(
                 offerings,
-                new Set(enrollments
+                new Map(enrollments
                     .filter((e) => e.status === 'active')
-                    .map((e) => Number(e.offering_id)))
+                    .map((e) => [Number(e.offering_id), e.id]))
             ))
             .catch((err) => showError(err.message));
     }

assets/js/pricing.js

@@ -0,0 +1,170 @@
+/* global usScheduler */
+(function () {
+    'use strict';
+
+    // Cadence wording for each offering billing mode, in the phrasing a student
+    // sees beside a price. Mirrors Offering::VALID_BILLING_MODES.
+    const CADENCE = {
+        one_time: 'at booking',
+        full_term: 'up front',
+        weekly: 'weekly',
+        monthly: 'monthly',
+    };
+
+    // How each cadence is actually collected, spelled out beneath the price so
+    // the one-word cadence is never the only thing a student has to go on.
+    const CADENCE_NOTE = {
+        one_time: 'Charged once, when you book.',
+        full_term: 'Charged once, up front, for the whole term.',
+        weekly: 'Charged for each lesson, 24 hours before it starts.',
+        monthly: 'Charged on the 1st of each month, for that month’s lessons.',
+    };
+
+    // The billing modes whose price is a per-lesson fee billed again and again,
+    // rather than a single charge. Mirrors Offering::SCHEDULED_BILLING_MODES.
+    const RECURRING = ['weekly', 'monthly'];
+
+    function escHtml(str) {
+        return String(str)
+            .replace(/&/g, '&')
+            .replace(/</g, '&lt;')
+            .replace(/>/g, '&gt;')
+            .replace(/"/g, '&quot;');
+    }
+
+    function mode(billingMode) {
+        return CADENCE[billingMode] ? billingMode : 'one_time';
+    }
+
+    // A monthly charge rolls up every lesson that falls in the month, so a
+    // private lesson's monthly price is quoted *per lesson* — the fee is
+    // multiplied by the lessons booked that month. A group class is enrolled in
+    // once, as one schedule, so its monthly figure is quoted as it stands.
+    function isPerLessonMonthly(billingMode, kind) {
+        return 'monthly' === billingMode && 'group_class' !== kind;
+    }
+
+    // "50.00 CAD" — amount then currency code, the format used throughout the
+    // ledger, receipts and payment notices.
+    function money(amount, currency) {
+        return `${(Number(amount) || 0).toFixed(2)} ${String(currency || '')}`.trim();
+    }
+
+    // The studio's HST rate as a percentage, frozen onto every payment at
+    // booking time (comped students are the one exception — they are not taxed).
+    function taxRate() {
+        return Number(usScheduler.taxRate) || 0;
+    }
+
+    // Tax on a pre-tax amount, rounded the same way PaymentService does.
+    function tax(amount) {
+        return Math.round((Number(amount) || 0) * taxRate()) / 100;
+    }
+
+    function total(amount) {
+        return (Number(amount) || 0) + tax(amount);
+    }
+
+    // "50.00 CAD at booking" / "50.00 CAD per lesson monthly" / "Free" — the
+    // catalogue label, always carrying the cadence so a price is never shown
+    // without saying when it is due.
+    function priceLabel(offering) {
+        const price = Number(offering.price) || 0;
+        if (price <= 0) {
+            return 'Free';
+        }
+
+        const billingMode = mode(offering.billing_mode);
+        const perLesson   = isPerLessonMonthly(billingMode, offering.kind) ? 'per lesson ' : '';
+
+        return `${money(price, offering.currency)} ${perLesson}${CADENCE[billingMode]}`;
+    }
+
+    // The price block shown on a booking/enrolment form, followed by the
+    // agreement the student must tick to confirm they will pay it. A free
+    // offering has nothing to agree to, so it renders nothing at all.
+    //
+    // opts: { price, currency, billing_mode, kind, occurrences }
+    // `occurrences` is how many lessons a one-time price is charged for in this
+    // one registration (a weekly reservation claims several at once); it is
+    // ignored for the other modes, whose price is charged per period regardless.
+    function summaryHtml(opts) {
+        const price = Number(opts.price) || 0;
+        if (price <= 0) {
+            return '';
+        }
+
+        const billingMode = mode(opts.billing_mode);
+        const currency    = opts.currency;
+        const each        = total(price);
+        const count       = 'one_time' === billingMode ? Math.max(1, Number(opts.occurrences) || 1) : 1;
+
+        const taxLine = taxRate() > 0
+            ? `<p class="us-price-tax">${escHtml(`Plus ${taxRate()}% HST — ${money(each, currency)}${count > 1 ? ' per lesson' : ''}.`)}</p>`
+            : '';
+
+        return `
+            <div class="us-price">
+                <h4>Price</h4>
+                <p class="us-price-amount">
+                    <strong>${escHtml(money(price, currency))}</strong>
+                    <span class="us-price-cadence">${escHtml(cadenceLabel(billingMode, opts.kind))}</span>
+                </p>
+                ${taxLine}
+                <p class="us-price-note">${escHtml(count > 1
+                    ? 'Charged once, when you book — for every week reserved.'
+                    : CADENCE_NOTE[billingMode])}</p>
+                <label class="us-price-agree">
+                    <input type="checkbox" class="us-price-accept" required>
+                    ${escHtml(agreeText(each, currency, billingMode, count, opts.kind))}
+                </label>
+            </div>`;
+    }
+
+    // The cadence as it reads beside an amount: a private lesson billed monthly
+    // adds "per lesson", since the month's charge is that fee times the lessons
+    // it covers.
+    function cadenceLabel(billingMode, kind) {
+        return isPerLessonMonthly(billingMode, kind)
+            ? `per lesson ${CADENCE[billingMode]}`
+            : CADENCE[billingMode];
+    }
+
+    // What the student is ticking: the amount actually billed (tax included),
+    // and when. A weekly reservation is charged per lesson for every week it
+    // claims, and the claim can come up short when another student takes one of
+    // the times first — so its total is stated as a ceiling, never a promise.
+    function agreeText(each, currency, billingMode, count, kind) {
+        if (RECURRING.indexOf(billingMode) !== -1) {
+            // A monthly group class is enrolled in once and quoted as it stands;
+            // everything else recurring is a per-lesson fee.
+            return 'monthly' === billingMode && !isPerLessonMonthly(billingMode, kind)
+                ? `I agree to pay ${money(each, currency)} monthly.`
+                : `I agree to pay ${money(each, currency)} per lesson, billed ${CADENCE[billingMode]}.`;
+        }
+
+        if (count > 1) {
+            return `I agree to pay ${money(each, currency)} per lesson at booking — `
+                + `up to ${count} lessons, ${money(each * count, currency)} in total.`;
+        }
+
+        return `I agree to pay ${money(each, currency)} ${CADENCE[billingMode]}.`;
+    }
+
+    // Whether the payment agreement has been ticked. A form without one (a free
+    // offering) has nothing outstanding, so it counts as agreed.
+    function agreed(root) {
+        const box = root.querySelector('.us-price-accept');
+
+        return !box || box.checked;
+    }
+
+    // Shared by the booking and group-class flows so a price reads the same
+    // wherever a student meets it.
+    window.usPricing = {
+        priceLabel,
+        summaryHtml,
+        agreed,
+        AGREE_REQUIRED: 'Please confirm you agree to pay the amount shown.',
+    };
+}());

docs/features/account-registration.md

@@ -97,7 +97,7 @@ recorded in `us_policy_acceptances` with `registration_type = account` and
 1. Studio admin opens **Invites** (`manage_students`) and invites an email; an invite row is created storing the token's SHA-256 hash, and the registration link (with the raw token) is shown **once** in a notice. To re-send a lost link, revoke and re-invite.
 2. The invitee opens `[us_student_register]` with the token (`?us_invite=<token>`); the lookup hashes the submitted token and matches it against the stored hash.
 3. The form shows the invited email **pre-filled and read-only** (the server always uses the invite's address on submit, so a tampered value is ignored) and collects a display name and password, and renders the signup-scoped published policies, each with a required acceptance checkbox. A token that is no longer redeemable (expired / accepted / revoked) renders the normal editable email field instead when open registration is on.
-4. On submit, the token is re-validated (hashed lookup); a `us_student` user is created, the policy acceptances are recorded (`account` type), the invite is marked `accepted`, and the user is logged in. If the invite carries an `offering_id` (a group-class email invite), the new account is linked to the matching access grant so the invite-only class becomes enrollable for them — see `group-classes.md`.
+4. On submit, the token is re-validated (hashed lookup); a `us_student` user is created, the policy acceptances are recorded (`account` type), the invite is marked `accepted`, and the user is logged in. The submission is processed on `template_redirect` (`RegistrationPage::maybeHandleSubmit()`) **before** any page output so `wp_set_auth_cookie()` actually persists — it then post/redirect/gets back to the page with `?us_registered=invite`, where the now-logged-in student sees the "created and logged in" confirmation. (Processing the form inside `render()`, which runs during `the_content`, sent the cookie after headers and left the student logged out on the next view.) If the invite carries an `offering_id` (a group-class email invite), the new account is linked to the matching access grant so the invite-only class becomes enrollable for them — see `group-classes.md`.
 
 ## Flow (self-approval mode)
 1. Studio admin enables **Studio Settings → Registration** and selects the registration page (shared with invites, `us_registration_page_id`).
@@ -126,6 +126,14 @@ recorded in `us_policy_acceptances` with `registration_type = account` and
 
 ## Frontend Shortcode
 - `[us_student_register]` — the registration page. In `invite` mode: shows the form for a valid pending invite, else an "by invitation only" message. In `self_approval` mode: shows the form to anyone (editable email), and renders confirmation-result notices from `?us_confirmed=1|expired`.
+- The invitation-only message is customisable: block attribute `inviteOnlyMessage` (set under the block's **Invitation-only notice** panel) / shortcode attribute `invite_only_message`. Blank falls back to the default wording (`RegistrationPage::inviteOnlyMessage()`).
+
+## Where Students Go Next
+The block's **After registration** panel picks the page a student continues to once
+registration finishes, and whether they get there by hand or automatically.
+
+- **Sign-in page** (`loginPageId` / `login_page_id`) — the target of the "Sign in to your account" link shown after email confirmation (`?us_confirmed=1|ready`, falling back to the WordPress login screen) and of the **"Continue to _&lt;page title&gt;_"** link every **logged-in** visitor gets (`RegistrationPage::continueLink()`): an invited student who just finished signing up (`?us_registered=invite`), and anyone who simply arrives at the registration page already signed in. The link names the chosen page (via `get_the_title()`) so the visitor knows where it goes; an untitled page falls back to "Continue to your account" rather than reading "Continue to ". Neither gets the WordPress-login-screen fallback — with no page chosen there is no link at all, since sending someone already signed in to the login screen is the same dead end with extra steps.
+- **Redirect automatically** (`autoRedirect`, block only) — sends the student to that page instead of showing the link, via `BlockRegistrar::maybeAutoRedirect()` on `template_redirect`. It fires only on those two finished states (`RegistrationPage::isRegistrationComplete()`), so the "check your email" step, a validation error, and an `expired` confirmation link are always shown rather than redirected past. With no page chosen nothing happens — there is deliberately no login-screen fallback for the redirect. See `editor-blocks.md`.
 
 ## Token Redirect
 A `template_redirect` handler (`RegistrationPage::maybeRedirectToRegistrationPage()`)

docs/features/availability-management.md

@@ -49,6 +49,8 @@ The front-end booking shortcode renders open slots from `GET /availability`
 either as an agenda-style list grouped by day or as a **weekly calendar** with
 previous/next-week navigation (toggle rendered by `assets/js/booking.js`; the
 site's `start_of_week` option is passed through the `usScheduler` JS config).
+Both views can be narrowed to the slots bookable as chosen private-lesson types
+with the **Show Only** lesson-type filter — see `lesson-booking.md`.
 
 ## REST API
 | Method   | Endpoint                                      | Permission                         |

docs/features/credits.md

@@ -0,0 +1,123 @@
+# Feature: Student Credits (cancelled paid lessons)
+
+## Overview
+When a lesson that has **already been paid for** is cancelled, the student is
+credited the amount they paid for *that lesson*. The credit sits on their account
+and is automatically applied against their future scheduled-billing charges
+(weekly / monthly) before they are asked to pay — so a cancelled-and-paid lesson
+becomes money toward the next one rather than a manual refund.
+
+This complements — it does not replace — the existing cancellation behaviour: a
+still-**pending** payment is voided (`PaymentService::voidPending`), and only a
+**paid** payment produces a credit.
+
+## Credit amount — one lesson's share
+The credit is one lesson's share of the covering payment's **total (including
+tax)**:
+
+| Covering payment | Lessons it covers | Credit on cancelling one |
+|------------------|-------------------|--------------------------|
+| Single booking (one-time / full-term single) | 1 | the whole total |
+| Weekly **scheduled** lesson | 1 (one payment per lesson) | the whole total |
+| Monthly **scheduled** charge | N lessons that month | `total ÷ N` |
+| Weekly reservation **series** paid upfront (full-term) | the whole series | `total ÷ series size` |
+
+The divisor is resolved in `PaymentService::coveredLessonCount`: a weekly series
+paid upfront (an *unscheduled* payment on a lesson that has a `series_id`) divides
+by the series size (`BookingRepository::countBySeries`); every other case divides
+by how many lessons point at the payment (`BookingRepository::countByPaymentId`),
+which is 1 for a single or weekly-scheduled lesson and N for a monthly charge.
+
+The original payment is **left untouched** — the studio keeps the money it
+collected; the credit is a forward-looking liability offset against future
+billing, never a refund of past revenue.
+
+### Guards
+- Only a **paid** payment credits; an unpaid/pending one is voided instead.
+- A lesson is credited **once** — `CreditRepository::existsForLesson` blocks a
+  second credit if the same lesson is cancelled again after being reinstated.
+- A non-anchor lesson in a series (no `payment_id` of its own) is credited through
+  the series anchor's payment.
+
+## Applying credit at billing time
+The daily scan (`Payment\ScheduledBillingRunner`) generates each student's due
+payments, then — before sending the notice — applies their available credit
+across those charges oldest-first (`PaymentService::applyCredits`):
+
+- Each payment's `us_payments.credit_applied` is raised by the amount covered,
+  reducing what the student owes (`Payment::netDue()`).
+- A payment **fully** covered by credit is marked **paid-by-credit** (status
+  `paid`, registration confirmed) so it drops out of the admin confirmation queue.
+- A payment **partially** covered stays `pending` at its reduced net due, shown in
+  the admin Payments queue and on the notice.
+- The credit ledger is drawn down by the total applied
+  (`CreditRepository::consume`, FIFO), marking each spent credit `consumed`.
+
+The consolidated notice email (`Payment\PaymentDueMailer`) lists each charge at
+its full amount, then an **"Account credit applied: -X"** line and the reduced
+**Total due**. When the balance is zero the notice still goes out (so the student
+knows their credit covered it) but carries no e-transfer destination or reference.
+
+## Admin visibility
+The studio admin sees a student's credit on their **student detail** page (gated by
+`manage_billing`, like the payment history). An **Account credit** section shows the
+available balance and a table of every credit — date, reason, original amount,
+remaining, and status (`available` / `consumed`). Built by
+`Auth\StudentHistory::creditBalance` / `::credits`.
+
+## Data model — `{prefix}us_credits`
+
+| Column              | Type            | Notes                                             |
+|---------------------|-----------------|---------------------------------------------------|
+| `id`                | BIGINT UNSIGNED | Primary key                                       |
+| `student_id`        | BIGINT UNSIGNED | WordPress user ID                                 |
+| `amount`            | DECIMAL(10,2)   | Original credit amount                            |
+| `remaining`         | DECIMAL(10,2)   | Unused balance                                    |
+| `currency`          | VARCHAR(3)      | ISO 4217                                          |
+| `source_payment_id` | BIGINT UNSIGNED | Payment that paid for the cancelled lesson        |
+| `source_lesson_id`  | BIGINT UNSIGNED | The cancelled lesson (dedup key)                  |
+| `reason`            | VARCHAR(191)    | Human-readable note                               |
+| `status`            | VARCHAR(20)     | `available` / `consumed`                          |
+| `created_at`        | DATETIME        | Insertion time                                    |
+| `updated_at`        | DATETIME        | Last draw-down; NULL until first consumed         |
+
+A new column on `{prefix}us_payments`:
+
+| Column           | Type          | Notes                                                     |
+|------------------|---------------|-----------------------------------------------------------|
+| `credit_applied` | DECIMAL(10,2) | Account credit applied to this payment; `netDue = total − credit_applied` |
+
+> **Schema change:** `us_credits` and `us_payments.credit_applied` ship as part of
+> the (as-yet-unreleased) **1.2.0** — the same release as scheduled billing — so
+> `Installer`/`dbDelta` create them when a pre-1.2.0 site upgrades. If you are on a
+> 1.2.0 *dev* build that predates this feature, the stored `us_schedular_version`
+> already matches `USC_VERSION`, so `Plugin::boot()` will not re-run the installer;
+> reactivate the plugin (or bump the version) to pick the new table/column up.
+
+## Reporting caveat
+Credits never touch past revenue and a credit-covered future charge is still
+marked `paid`, so `PaymentReport` (which sums `status = paid`) counts the original
+paid lesson and the later credit-covered lesson as gross revenue. This mirrors the
+design choice to leave the original payment intact rather than represent a partial
+refund of a shared payment.
+
+## Implementation
+- Model: `Unsupervised\Schedular\Payment\Credit`
+- Repository: `Unsupervised\Schedular\Payment\CreditRepository`
+- Issue on cancel: `PaymentService::creditForCancelledLesson`
+  (called from `Booking\BookingEndpoint::cancel` and `::updateStatus`)
+- Apply at billing: `PaymentService::applyCredits`, driven by
+  `Payment\ScheduledBillingRunner::sendNotices`
+- Net due: `Payment::netDue()`, `PaymentRepository::addCreditApplied`
+- Lesson counts: `Booking\BookingRepository::countByPaymentId` / `countBySeries`
+- Admin view: `Auth\StudentHistory::creditBalance` / `::credits`, rendered in
+  `templates/admin/student-detail.php`
+
+## Tests
+- `tests/Unit/Payment/CreditRepositoryTest.php`
+- `tests/Unit/Payment/PaymentServiceTest.php` (`creditForCancelledLesson`, `applyCredits`)
+- `tests/Unit/Payment/ScheduledBillingRunnerTest.php` (credit applied to a run)
+- `tests/Unit/Payment/PaymentDueMailerTest.php` (credit line + reduced total)
+- `tests/Unit/Payment/PaymentTest.php` (`netDue`)
+- `tests/Unit/Booking/BookingEndpointTest.php` (credit issued on cancel)
+- `tests/Unit/Auth/StudentHistoryTest.php` (`creditBalance`, `credits`)

docs/features/editor-blocks.md

@@ -27,17 +27,29 @@ Four blocks have sidebar (inspector) options:
 |---|---|---|---|
 | `us-scheduler/booking` | `loginPageId` (number) | `0` | Page the "log in to book a lesson" link points to for logged-out visitors. `0` = the WordPress login screen (with a redirect back to the current page). |
 | `us-scheduler/booking` | `autoRedirect` (boolean) | `false` | Send logged-out visitors straight to the login page instead of showing the link. |
+| `us-scheduler/booking` | `lessonTypeId` (number) | `0` | Pin the calendar to a single private-lesson type: only the times bookable as that type are listed, and it is the only type students can book here (auto-selected on the registration form). `0` = every type. Shortcode equivalent: `[us_booking lesson_type="…"]`. |
+| `us-scheduler/booking` | `showTypeFilter` (boolean) | `true` | Whether students get the **Show Only** button that narrows the calendar to chosen lesson types. Unused when a single type is pinned (there is nothing to choose). Shortcode equivalent: `[us_booking show_filter="no"]`. |
+| `us-scheduler/booking` | `displayMode` (string) | `both` | Which halves of the page to embed: `both`, `booking` (calendar only, no upcoming-lessons panel) or `upcoming` (the student's lessons only, nothing bookable) — so the two halves can live on different pages. Anything unrecognised falls back to `both`. Shortcode equivalent: `[us_booking show="booking"]`. |
 | `us-scheduler/student-login` | `bookingPageId` (number) | `0` | Page the "View available lessons" link points to for logged-in visitors, and the post-login redirect target. `0` = the current page. |
 | `us-scheduler/student-login` | `autoRedirect` (boolean) | `false` | Send logged-in visitors straight to the booking page instead of showing the link. Does nothing until a booking page is chosen. |
-| `us-scheduler/student-register` | `loginPageId` (number) | `0` | Page the "Sign in to your account" link points to after a student confirms their email. `0` = the WordPress login screen. Shortcode equivalent: `[us_student_register login_page_id="…"]`. |
-| `us-scheduler/group-classes` | `offeringId` (number) | `0` | Restrict the page to a single group class, for embedding on a page dedicated to that class. `0` = browse all classes. Shortcode equivalent: `[us_group_classes offering="…"]`. |
+| `us-scheduler/student-register` | `loginPageId` (number) | `0` | Page students continue to once registration finishes — the "Sign in to your account" link after they confirm their email, and the "Continue to your account" link an invited student gets on the spot. `0` = the WordPress login screen for the confirmation link, and no link at all for the (already signed-in) invited student. Shortcode equivalent: `[us_student_register login_page_id="…"]`. |
+| `us-scheduler/student-register` | `autoRedirect` (boolean) | `false` | Send students straight to that page instead of showing the link. Does nothing until a page is chosen — there is no login-screen fallback here. |
+| `us-scheduler/group-classes` | `offeringId` (number) | `0` | Restrict the page to a single group class, for embedding on a page dedicated to that class. The class description is then omitted — only the schedule, instructor, price and enrolment controls are shown, so the surrounding page's own copy is not repeated. `0` = browse all classes, descriptions included. Shortcode equivalent: `[us_group_classes offering="…"]`. |
 
 The page selects list all published pages; if a chosen page is later deleted,
 the blocks fall back to their defaults. The group-classes block's class
 select is a dropdown of active group classes fetched from
 `GET /us-scheduler/v1/offerings?kind=group_class`; a stored class that is no
 longer offered shows as "Unavailable class #N" rather than silently falling
-back to all classes. The link targets are also available
+back to all classes. The booking block's lesson-type select works the same way
+against `?kind=private_lesson` ("Unavailable lesson type #N"), and the live
+page says so plainly when the pinned type has been withdrawn.
+
+The booking block's options reach the front end as data attributes on
+`#us-booking-app` (`data-lesson-type`, `data-type-filter`) or as omitted
+containers (`displayMode`), which `assets/js/booking.js` reads on load — see
+`lesson-booking.md`. Its editor preview follows `displayMode`, showing the
+calendar, the upcoming-lessons panel, or both. The link targets are also available
 to the shortcodes as `[us_booking login_page_id="…"]` and
 `[us_student_login booking_page_id="…"]`; auto-redirect is block-only.
 
@@ -48,6 +60,15 @@ queried singular post's content for the block (including inside nested
 blocks), and redirects when the block opts in. A block whose target is its
 own page is ignored to avoid a redirect loop.
 
+The registration block's auto-redirect additionally only fires on a
+**finished** registration — `RegistrationPage::isRegistrationComplete()`: an
+invited student who is now logged in (`?us_registered=invite`), or a
+self-signup back from the emailed confirmation link (`?us_confirmed=ready|1`).
+The intermediate "check your email" step and every failure (a validation
+error, `?us_confirmed=expired`) stay on the page so the student reads the
+message. That check runs before the content is parsed, so an ordinary page
+view does not pay for the extra block scan.
+
 ## How it works
 
 - **`BlockRegistrar`** (`src/BlockRegistrar.php`) hooks `init` and registers
@@ -78,7 +99,9 @@ placeholder content:
 - **Booking** — `#us-booking-app` with sample `.us-day` / `.us-slot` rows and
   disabled Book buttons.
 - **Group classes** — `#us-group-app` with a sample `.us-class` card and a
-  disabled Enrol button.
+  disabled Enrol button. When `offeringId` pins a single class the preview
+  drops the sample description, matching what the live page renders in that
+  mode.
 - **Login** — the real `templates/frontend/login-page.php` template (it has
   no request-state dependencies).
 - **Registration** — a disabled sample of the `.us-register-form` fields.

docs/features/group-classes.md

@@ -38,21 +38,59 @@ shows "You are enrolled in this class." instead of the Enrol button (the
 server would reject the duplicate with `409 already_enrolled` regardless — a
 cancelled enrolment does not block re-enrolling).
 
-1. Student opens a group class from the offering catalog.
+1. Student opens a group class from the offering catalog. Each class card shows its price with the **cadence** it is billed on — `120.00 CAD up front`, `40.00 CAD monthly`, and so on.
 2. Student answers the offering's questions (`GET /offerings/{id}/questions`).
 3. Student accepts the current published policy versions (`GET /policies`) — required to continue.
-4. Full-term payment is taken per the student's billing method (card by default; `pending` for e-transfer; skipped for comp). See `payments.md`.
-5. `POST /enrollments` creates the enrolment (`status = active`), records answers and policy acceptances, and links the payment — but only if the offering's `capacity` has not been reached.
-6. On successful payment (or comp) a receipt is emailed.
+4. The enrolment form restates the price (with HST) and requires a second, separate agreement to pay that amount before it will submit. See **Price Display and the Pay Agreement** in `payments.md`.
+5. Full-term payment is taken per the student's billing method (card by default; `pending` for e-transfer; skipped for comp). See `payments.md`.
+6. `POST /enrollments` creates the enrolment (`status = active`), records answers and policy acceptances, and links the payment — but only if the offering's `capacity` has not been reached.
+7. On successful payment (or comp) a receipt is emailed.
 
 Capacity is enforced at enrolment time by counting `active` rows for the offering;
 a class at capacity rejects further enrolments.
 
+Enrolment also closes after the class's **enrolment deadline** (the instructor's
+`enrollment_deadline`, defaulting to `term_start` — the first class day; see
+`offerings.md`). Past the deadline `POST /enrollments` rejects the enrolment with
+`403 enrollment_closed`, and the class list shows "Enrolment has closed." in place
+of the Enrol button. While enrolment is still open the class card shows an
+"Enrol by" line with the effective deadline date.
+
+The deadline only bounds student **self**-enrolment. An instructor (or studio admin)
+can still enrol someone by hand from the class **details page** — the **Add students
+directly** control, available for every group class, deliberately bypasses the
+deadline (and capacity) so a **late enrolment** can be added after the class has
+closed. Past the deadline the details page labels these as late enrolments. See
+**Admin Interface** below.
+
+## Withdrawal Flow
+A student may withdraw themselves from a class they are enrolled in through the same
+group-class page: an active enrolment shows a **Withdraw** button.
+`POST /enrollments/{id}/withdraw` marks the enrolment `cancelled` (freeing its
+capacity seat) and voids any still-pending payment. It **never issues an account
+credit** — a timely withdrawal is a clean exit, not a refund (credits are reserved
+for cancelled lessons; see `credits.md`).
+
+Self-withdrawal is bounded by the class's **withdrawal deadline** (the instructor's
+`withdrawal_deadline`; see `offerings.md`). Unlike the enrolment deadline it has no
+implicit default — a class with no deadline set stays open to withdrawal for its
+whole life. Past the deadline `POST /enrollments/{id}/withdraw` rejects the request
+with `403 withdrawal_closed`, and the class card shows "Withdrawal has closed —
+contact the studio to withdraw." in place of the Withdraw button. The endpoint also
+returns `404 not_found` for an unknown enrolment and `403 forbidden` when the
+enrolment is not the caller's own; a withdrawal of an already-cancelled enrolment is
+idempotent.
+
+The deadline only bounds student **self**-withdrawal. A studio admin can withdraw a
+student at any time from the **student detail page** (`Auth\StudentActions::withdrawEnrollment`),
+which is never subject to the deadline.
+
 ## REST API
-| Method   | Endpoint                                     | Permission                       |
-|----------|----------------------------------------------|----------------------------------|
-| `GET`    | `/wp-json/us-scheduler/v1/enrollments`       | Any logged-in user               |
-| `POST`   | `/wp-json/us-scheduler/v1/enrollments`       | `book_lesson`                    |
+| Method   | Endpoint                                        | Permission                       |
+|----------|-------------------------------------------------|----------------------------------|
+| `GET`    | `/wp-json/us-scheduler/v1/enrollments`          | Any logged-in user               |
+| `POST`   | `/wp-json/us-scheduler/v1/enrollments`          | `book_lesson`                    |
+| `POST`   | `/wp-json/us-scheduler/v1/enrollments/{id}/withdraw` | Owner (the enrolled student) |
 
 `POST /enrollments` body: `offering_id`, `answers[]` (`question_id` → value),
 `accepted_policy_version_ids[]`, and payment data (see `payments.md`). The
@@ -74,13 +112,15 @@ flips their grant from `invited` to `enrolled`.
 
 Access to an invite-only class is recorded in `{prefix}us_group_access` — a grant per
 person, separate from the enrolment itself. The instructor manages access from
-**My Lessons → My Group Classes**, which renders three controls under each invite-only
-class:
+**My Lessons → My Group Classes**. **Add students directly** is available on every
+class's details page (see **Admin Interface**); invite-only classes add two more
+controls beneath it:
 
 1. **Add students directly** — the selected registered students are enrolled immediately
    (`status = active`) with a **pending payment** at the class price (comp students are
    settled at once by `PaymentService`). No access grant is needed — this writes straight
-   to `us_group_enrollments` + `us_payments`.
+   to `us_group_enrollments` + `us_payments`. It bypasses the enrolment deadline and
+   capacity, so it doubles as the **late-enrolment** path after a class has closed.
 2. **Make available** — the selected registered students get an `invited` grant so the
    class appears in their own group-class list; they then self-enrol through the normal
    paid flow. Each is emailed a "you've been added" notice.
@@ -121,12 +161,14 @@ class becomes enrollable for them — they choose whether to enrol.
   against capacity, plus a **View details** link (**View & invite** for invite-only
   classes). Selecting a class (`?class_id=<id>`, scoped to the owning instructor) opens its
   **details page**: a class-details panel (when, instructor, enrolled/capacity, duration,
-  price, schedule note, description, status), the roster of enrolled students with enrolment
-  and payment status, and — for invite-only classes — an **Invite & enrol students** section
-  listing who has been invited but not yet enrolled alongside the add/make-available/
-  invite-by-email controls (nonce-checked `usc_action` POSTs, scoped to the owning
-  instructor). Managing who is in an invite-only class is therefore done entirely from this
-  page. The summary (`templates/admin/my-group-classes.php`) and the details page
+  price, schedule note, enrolment deadline, status), the roster of enrolled students with
+  enrolment and payment status, and an **Add students** section. Every class — public or
+  invite-only — carries the **Add students directly** control there, which enrols the
+  selected students immediately (a late enrolment past the deadline; the section says so
+  when the deadline has passed). Invite-only classes additionally get the
+  **make-available** and **invite-by-email** controls plus the list of who has been invited
+  but not yet enrolled. These are nonce-checked `usc_action` POSTs, scoped to the owning
+  instructor. The summary (`templates/admin/my-group-classes.php`) and the details page
   (`templates/admin/my-group-class-detail.php`) are separate templates.
 
 ## Implementation
@@ -135,7 +177,7 @@ class becomes enrollable for them — they choose whether to enrol.
 - Model: `Unsupervised\Schedular\GroupClass\Enrollment`
 - Admin controller: `Unsupervised\Schedular\GroupClass\GroupClassController` — `renderPage` (studio admin per-class summary, `view_all_lessons`) and `renderInstructorPage` (instructor summary + `?class_id` roster detail, `view_own_lessons`)
 - REST endpoint: `Unsupervised\Schedular\GroupClass\EnrollmentEndpoint`
-- Frontend: `Unsupervised\Schedular\GroupClass\GroupClassPage` (`[us_group_classes]` shortcode; `offering="…"` restricts it to a single class for embedding on a dedicated page — the block equivalent is the `offeringId` attribute)
+- Frontend: `Unsupervised\Schedular\GroupClass\GroupClassPage` (`[us_group_classes]` shortcode; `offering="…"` restricts it to a single class for embedding on a dedicated page — the block equivalent is the `offeringId` attribute). In single-class mode `assets/js/group-classes.js` leaves the class description out of the card, since the page it is embedded on already describes the class; the schedule, instructor, schedule note, price and enrolment controls are still shown.
 - Reuses `Registration\RegistrationGate` (intake answers + booking-scoped policy acceptance, type `enrollment`)
 
 > **Payment:** a priced enrolment creates a payment via `Payment\PaymentService`

docs/features/lesson-booking.md

@@ -20,16 +20,66 @@ Students register for a private lesson by choosing an offering, picking a time (
 | `created_at`   | DATETIME         | Insertion time                                             |
 
 ## Registration Flow
-1. Student opens the page with the `[us_booking]` shortcode and browses open slots as a weekly calendar (the default, anchored to the week of the earliest open slot) or an agenda list (view toggle with previous/next-week navigation; times shown in 12-hour AM/PM form).
-2. Student picks a slot and an **offering** (a 30 or 60-minute private-lesson type). When the slot is tied to an offering the form shows it locked (the student sees exactly what they are booking); otherwise the form presents the instructor's active private-lesson offerings whose duration fits the slot. Every booking requires an offering — a generic slot with no fitting offering cannot be booked online.
+1. Student opens the page with the `[us_booking]` shortcode and browses open slots as a weekly calendar (the default, anchored to the week of the earliest open slot) or an agenda list (view toggle with previous/next-week navigation; times shown in 12-hour AM/PM form). A **Show Only** button beside the view toggle opens a lesson-type filter that narrows the open times to those bookable as the chosen types (see **Lesson-Type Filter**).
+2. Student picks a slot and an **offering** (a 30 or 60-minute private-lesson type). When the slot is tied to an offering the form shows it locked (the student sees exactly what they are booking); otherwise the form presents the instructor's active private-lesson offerings whose duration fits the slot, narrowed to the filtered types. When exactly one type remains it is pre-selected (its intake questions load immediately). Every booking requires an offering — a generic slot with no fitting offering cannot be booked online.
 3. For a `weekly` reservation, the same weekday/time is held for the rest of the offering's term.
 4. Student answers the offering's questions (`GET /offerings/{id}/questions`).
 5. Student accepts the current published policy versions (`GET /policies`) — required to continue.
-6. Payment is taken per the student's billing method (card by default; `pending` for e-transfer; skipped for comp). See `payments.md`.
-7. `POST /bookings` creates the lesson row(s) (`status = pending`), records answers and policy acceptances, marks `us_availability.is_booked = 1`, and links the payment. A booking with nothing owed (a free offering) creates no payment and is `confirmed` immediately.
-8. On successful payment (or comp) the lesson is `confirmed` and a receipt is emailed.
-9. Instructor sees the booking under **My Lessons** and may update status via `PATCH /bookings/{id}/status`.
-10. The booking page also shows the student their upcoming lessons (`GET /bookings`) with a per-lesson status badge (pending payment / confirmed) and a **Cancel** button.
+6. Student is shown what the booking costs — the offering's price with its **cadence** (at booking / up front / weekly / monthly), plus HST — and must tick a second, separate agreement to pay that amount before the form will submit. A weekly reservation quotes the per-lesson fee and the ceiling on the total it can claim. A free offering shows no price block. See **Price Display and the Pay Agreement** in `payments.md`.
+7. Payment is taken per the student's billing method (card by default; `pending` for e-transfer; skipped for comp). See `payments.md`.
+8. `POST /bookings` creates the lesson row(s) (`status = pending`), records answers and policy acceptances, marks `us_availability.is_booked = 1`, and links the payment. A booking with nothing owed (a free offering) creates no payment and is `confirmed` immediately.
+9. On successful payment (or comp) the lesson is `confirmed` and a receipt is emailed.
+10. Instructor sees the booking under **My Lessons** and may update status via `PATCH /bookings/{id}/status`.
+11. The booking page also shows the student their upcoming lessons (`GET /bookings`) — each with the booked offering's name and length, when it happens, a per-lesson status badge (pending payment / confirmed), and a **Cancel** button. Only the soonest five are shown; a **Show all** control reveals the rest. `GET /bookings` includes `offering_title` and `duration_minutes` for each lesson so the list needs no extra request.
+
+## Lesson-Type Filter
+Not every open slot can be booked as every private-lesson type — a slot tied to
+an offering takes that offering only, and a generic slot only takes types whose
+length fits. The booking calendar therefore carries a lesson-type filter,
+collapsed behind a **Show Only** button that sits in the calendar's control row
+beside the List/Week toggle. Opening it reveals the type list between that row
+and the calendar: a checkbox per active private-lesson type (from
+`GET /offerings?kind=private_lesson`, fetched once per page load), showing the
+instructor's name alongside the title when the catalog spans more than one
+instructor. The button carries the number of ticked types and stays highlighted
+while the filter is on, so a collapsed filter is never invisible. Both button and
+list are hidden when there is only one bookable type.
+
+Ticking one or more types narrows the calendar to the slots bookable as one of
+them; no ticks means no filter, and collapsing the list leaves the filter
+applied. Picking a filtered slot narrows the registration form's **Lesson type**
+picker the same way, and when exactly one type remains it is pre-selected and its
+intake questions load immediately. Changing the filter re-anchors the week view
+on the earliest matching slot, so the student never lands on an empty week.
+**Show all types** clears the filter.
+
+Bookability is decided client-side by `offeringFitsSlot()` in
+`assets/js/booking.js` — the mirror of the rule `POST /bookings` enforces (same
+instructor, the tied offering when there is one, otherwise a matching
+`duration_minutes`). The filter is a browsing aid only: the server re-checks
+every booking regardless.
+
+Two block/shortcode options change what the filter has to work with (see
+`editor-blocks.md`), passed to the script as data attributes on
+`#us-booking-app`:
+
+- **A pinned lesson type** (`data-lesson-type`) narrows the catalog to that one
+  offering, so the page lists only the times bookable as it and books nothing
+  else — the filter control hides itself, there being one type left. A pinned
+  type that is no longer offered shows "This lesson type is not available for
+  booking right now" rather than an empty calendar.
+- **Filter off** (`data-type-filter="0"`) drops the **Show Only** button
+  entirely; every open time is listed, as before the filter existed.
+
+## Embedding Halves of the Page
+The page has two halves — the booking calendar and the student's upcoming
+lessons — and the block/shortcode can embed either on its own (`displayMode` /
+`show`: `both` (default), `booking`, `upcoming`). The template simply omits the
+containers of the half that is not wanted, and the script skips the work that
+belongs to a missing container: an upcoming-only embed never requests
+availability or the offering catalog, and a booking-only embed never requests
+`GET /bookings`. An unrecognised value renders the whole page, so a typo cannot
+silently hide half of it.
 
 ## Cancellation
 Students cancel their own lessons via `POST /bookings/{id}/cancel` (idempotent).
@@ -85,10 +135,15 @@ kind `group_class`; see `group-classes.md`.
 Both pages open in a **Week** calendar view by default (`usc_view`/`usc_week`
 query params, same pattern as the availability page, bucketed via
 `Availability\WeekCalendar`), with the original table available as the **List**
-view — the list is where the per-lesson HST and e-transfer edit forms live.
+view — the list is where the per-lesson HST and e-transfer edit forms live. Both
+views show the booked offering's name, and each lesson links through (`?lesson_id=`)
+to a **detail view** (`LessonController::maybeRenderDetail()`) that shows the
+offering, time, status, notes, the policy versions the student accepted (with
+acceptance time and IP), and their intake-question answers. On **My Lessons** an
+instructor may only open their own lessons; the studio **Scheduler** may open any.
 
 ## Frontend Shortcodes
-- `[us_booking]` — student calendar + registration flow; requires `book_lesson` capability
+- `[us_booking]` — student calendar + registration flow; requires `book_lesson` capability. Attributes: `login_page_id`, `lesson_type` (pin one private-lesson offering), `show_filter` (`no` hides the **Show Only** filter), `show` (`both` / `booking` / `upcoming`)
 - `[us_student_login]` — front-end login form for students
 
 ## Implementation
@@ -96,8 +151,10 @@ view — the list is where the per-lesson HST and e-transfer edit forms live.
 - Model: `Unsupervised\Schedular\Booking\Lesson`
 - Registration gate: `Unsupervised\Schedular\Registration\RegistrationGate` — validates and records intake answers + booking-scoped policy acceptances; shared with group enrolment
 - Admin controller: `Unsupervised\Schedular\Booking\LessonController`
+- Admin lesson detail presenter: `Unsupervised\Schedular\Booking\LessonDetail` (per-lesson intake answers + policy acceptances), template `templates/admin/lesson-detail.php`
 - REST endpoint: `Unsupervised\Schedular\Booking\BookingEndpoint`
 - Frontend: `Unsupervised\Schedular\Booking\BookingPage`, `Unsupervised\Schedular\Auth\LoginPage`
+- Upcoming-lessons panel: rendered client-side into `#us-my-lessons` by `assets/js/booking.js` (`lessonRowHtml`/`renderMyLessons`), mirrored for the editor by `BlockPreview::upcomingLessons()` — keep the two markup shapes in step.
 
 > **Payment seam:** a priced booking is created with `status = pending` and its
 > payment linked via `payment_id`; the lesson is confirmed when the payment is
@@ -105,7 +162,18 @@ view — the list is where the per-lesson HST and e-transfer edit forms live.
 > Unpriced bookings skip the seam entirely and are confirmed at creation.
 > `GET /policies?scope=booking` returns just the booking-gate policies the form
 > must collect.
+>
+> **Frontend CSS scoping:** every rule for the booking page's own markup is
+> written under `#us-booking-app` (`assets/css/frontend.css`). These panels sit
+> inside whatever layout the active theme provides, and bare class selectors lose
+> to theme rules on `div`/`span`/`strong` — which flattens the flex layout and
+> renders the lesson details on top of the actions. The row's two columns are
+> `div`s for the same reason: the layout must not depend on overriding the
+> inline default. New booking-page rules should follow both conventions.
 
 ## Tests
 - `tests/Unit/Booking/BookingRepositoryTest.php`
 - `tests/Unit/Booking/LessonTest.php`
+- `tests/Unit/Booking/LessonControllerTest.php`
+- `tests/Unit/Booking/LessonDetailTest.php`
+- `tests/Unit/Booking/BookingEndpointTest.php`

docs/features/offerings.md

@@ -15,12 +15,14 @@ An offering is anything a student can register for: a private-lesson type (30 or
 | `duration_minutes` | SMALLINT         | Private lessons only (e.g. 30, 60); NULL for group classes  |
 | `price`            | DECIMAL(10,2)    | Price in dollars                                            |
 | `currency`         | VARCHAR(3)       | ISO 4217, e.g. `CAD`                                        |
-| `billing_mode`     | VARCHAR(20)      | `one_time` (single booking) or `full_term` (weekly / group) |
+| `billing_mode`     | VARCHAR(20)      | `one_time`, `full_term`, `weekly`, or `monthly` (see Billing Mode below) |
 | `allow_weekly`     | TINYINT(1)       | Private only — may be reserved weekly for the term          |
 | `capacity`         | SMALLINT         | Group only — max enrolments; NULL for private               |
 | `term_start`       | DATE             | Group / term offerings — first day; NULL otherwise          |
 | `term_end`         | DATE             | Group / term offerings — last day; NULL otherwise           |
 | `class_time`       | TIME             | Group only — time of day each session starts; NULL otherwise |
+| `enrollment_deadline` | DATE          | Group only — last day students may enrol; NULL defaults to `term_start` (the first class day) |
+| `withdrawal_deadline` | DATE          | Group only — last day a student may withdraw themselves; NULL keeps self-withdrawal open indefinitely |
 | `schedule_note`    | VARCHAR(191)     | Group only — human-readable schedule, e.g. "Tuesdays 4:00pm"|
 | `cancellation_cutoff_hours` | SMALLINT UNSIGNED | Optional per-offering cancellation cutoff in hours; NULL inherits the studio default (see `cancellation-cutoff.md`) |
 | `access_mode`      | VARCHAR(20)      | `public` (listed in the catalog) or `invite_only` (group classes hidden from the catalog — see `group-classes.md`) |
@@ -30,6 +32,17 @@ An offering is anything a student can register for: a private-lesson type (30 or
 ## Billing Mode
 - `one_time` — charged once at booking (a single private lesson).
 - `full_term` — charged in full upfront at registration (a weekly private reservation or a year-long group class). See `payments.md`.
+- `weekly` — **not** charged at registration; a pending payment for one lesson's fee is generated **24 hours before each lesson** by the daily billing scan.
+- `monthly` — **not** charged at registration; on the **1st of each month** a single pending payment is generated for that month. A **private lesson**'s price is a per-lesson fee, so the month is billed (#lessons in the month) × fee; a **group class**'s price is the monthly fee itself, billed once for the month however many times the class meets in it.
+
+Students see the mode as a **cadence** beside every price on the front end — *at
+booking*, *up front*, *weekly*, *monthly* — and confirm it explicitly before a
+booking or enrolment goes through. See **Price Display and the Pay Agreement** in
+`payments.md`.
+
+`weekly` and `monthly` are *scheduled* billing (`Offering::isScheduledBilling()`): the
+booking/enrolment succeeds with no payment step, and payments are created later by the
+daily `us_generate_due_payments` cron scan. See `scheduled-billing.md` and `payments.md`.
 
 ## Term Dates
 Group classes carry a term: `term_start` is the date of the first class and
@@ -51,6 +64,30 @@ one-off), and returns an empty list unless date, time, and a positive duration a
 all set. These windows drive availability reconciliation (see **Instructor
 assignment** below and `group-classes.md`).
 
+## Enrolment deadline
+A group class carries an optional `enrollment_deadline` the instructor sets on the
+offering form (blank leaves it NULL). `Offering::effectiveEnrollmentDeadline()`
+resolves it to the stored date, or to `term_start` (the first class day) when unset,
+so a class with no explicit deadline still closes to new enrolments once the first
+class arrives. `Offering::isEnrollmentOpen($today)` compares a `Y-m-d` "today"
+against that effective deadline (inclusive — the deadline day is still open). The
+enrolment endpoint enforces it (`403 enrollment_closed`) and the front-end
+group-class list mirrors the same rule; see `group-classes.md`.
+
+## Withdrawal deadline
+A group class also carries an optional `withdrawal_deadline` — the last day a
+student may withdraw *themselves* from the class. Unlike the enrolment deadline it
+has **no implicit default**: `Offering::isWithdrawalOpen($today)` treats an unset
+(NULL) deadline as always open, so a class only closes to self-withdrawal once the
+instructor sets a date and it passes (comparison is inclusive — the deadline day is
+still open). A withdrawal made while open frees the seat and voids any still-pending
+payment but **never issues an account credit** (credits are reserved for cancelled
+lessons; see `credits.md`). Once the deadline passes the student must contact the
+studio, and an admin withdraws them by hand from the student detail page — the admin
+path is never subject to the deadline. The student endpoint enforces it
+(`403 withdrawal_closed`) and the front-end group-class list mirrors the rule; see
+`group-classes.md`.
+
 ## Instructor assignment
 Every offering has an owning `instructor_id`. A studio admin
 (`manage_instructors`) sees an **Instructor** picker on the offering form and may
@@ -75,7 +112,7 @@ Studio admin and instructors manage offerings under **Offerings** in wp-admin.
 ## REST API
 | Method   | Endpoint                                    | Permission                       |
 |----------|---------------------------------------------|----------------------------------|
-| `GET`    | `/wp-json/us-scheduler/v1/offerings`        | Public (active offerings only)   |
+| `GET`    | `/wp-json/us-scheduler/v1/offerings`        | `book_lesson` or `manage_offerings` (active offerings only) |
 | `POST`   | `/wp-json/us-scheduler/v1/offerings`        | `manage_offerings`               |
 | `PATCH`  | `/wp-json/us-scheduler/v1/offerings/{id}`   | `manage_offerings` + owner       |
 | `DELETE` | `/wp-json/us-scheduler/v1/offerings/{id}`   | `manage_offerings` + owner       |
@@ -84,7 +121,7 @@ Studio admin and instructors manage offerings under **Offerings** in wp-admin.
 
 ## Implementation
 - Repository: `Unsupervised\Schedular\Offering\OfferingRepository`
-- Model: `Unsupervised\Schedular\Offering\Offering` (`normalizeTime`, `sessionWindows`)
+- Model: `Unsupervised\Schedular\Offering\Offering` (`normalizeTime`, `sessionWindows`, `effectiveEnrollmentDeadline`, `isEnrollmentOpen`)
 - Admin controller: `Unsupervised\Schedular\Offering\OfferingController`
 - REST endpoint: `Unsupervised\Schedular\Offering\OfferingEndpoint` (public listing includes `instructor_name`)
 - Availability reconciliation: `Unsupervised\Schedular\Offering\ClassSlotReconciler` (uses `Availability\AvailabilityRepository::findOverlapping`)

docs/features/payments.md

@@ -88,6 +88,9 @@ After booking, the destination on a payment can be corrected per booking:
 | `status`                   | VARCHAR(20)      | `pending` / `paid` / `failed` / `refunded`            |
 | `tax_rate`                 | DECIMAL(5,2)     | HST rate % frozen at booking; editable until paid     |
 | `tax_amount`               | DECIMAL(10,2)    | Computed tax in dollars (`amount × tax_rate / 100`)   |
+| `due_date`                 | DATE             | When a *scheduled* payment is due; NULL = due at registration (`Payment::isScheduled()`) |
+| `period_key`               | VARCHAR(20)      | Scheduled-billing dedup key: session date (weekly) or `YYYY-MM` (monthly); NULL otherwise |
+| `notice_batch`             | VARCHAR(32)      | Shared reference for the payments one due-notice email covers, so a lump-sum e-transfer reconciles to them; NULL otherwise |
 | `etransfer_email`          | VARCHAR(191)     | Frozen e-transfer destination; editable until confirmed |
 | `stripe_payment_intent_id` | VARCHAR(255)     | Stripe PaymentIntent id; NULL for e-transfer / comp   |
 | `receipt_number`           | VARCHAR(50)      | Sequential receipt id; set when `paid`                |
@@ -95,6 +98,59 @@ After booking, the destination on a payment can be corrected per booking:
 | `created_at`               | DATETIME         | Insertion time                                        |
 | `paid_at`                  | DATETIME         | When marked `paid`; NULL otherwise                    |
 
+## Price Display and the Pay Agreement
+Every price a student is shown on the front end carries its **cadence** — the
+offering's `billing_mode` in the words the student needs:
+
+| `billing_mode` | Shown as                          | Explained beneath as                                       |
+|----------------|-----------------------------------|------------------------------------------------------------|
+| `one_time`     | `at booking`                      | Charged once, when you book.                               |
+| `full_term`    | `up front`                        | Charged once, up front, for the whole term.                |
+| `weekly`       | `weekly`                          | Charged for each lesson, 24 hours before it starts.        |
+| `monthly`      | `per lesson monthly` / `monthly`  | Charged on the 1st of each month, for that month's lessons.|
+
+So a lesson type reads `50.00 CAD at booking` in the booking form's type picker,
+and a group class card reads `120.00 CAD up front`. A free offering shows `Free`.
+
+**`monthly` reads differently per offering kind, because it *bills* differently.**
+A private lesson's price is a per-lesson fee and its monthly charge is that
+month's lessons × the fee, so the fee is quoted **per lesson**
+(`50.00 CAD per lesson monthly`). A monthly group class is priced **per month** —
+`ScheduledBillingRunner::billGroupMonthly()` charges the fee once for the month
+however many times the class meets in it — so its figure is quoted as it stands
+(`120.00 CAD monthly`). The display split is `isPerLessonMonthly()` in
+`assets/js/pricing.js`; the billing split is the one place the monthly rule
+differs between the two kinds.
+
+Before a booking or enrolment can be submitted, the form shows the price again as
+a summary block with a **required agreement checkbox** — the second confirmation,
+distinct from the policy acceptances above it:
+
+> ☐ I agree to pay 56.50 CAD at booking.
+
+The agreed figure is the amount actually billed, so the studio **HST rate** is
+added to it (`usScheduler.taxRate`, localized from `us_hst_rate`) and broken out
+above the checkbox — matching the total `Payment::total()` charges. A comped
+student is not taxed and is not charged at all, so for them the quoted figure is
+an upper bound. A free offering has nothing to agree to and shows no block.
+
+Cadence-specific wording:
+
+- **Weekly reservation of a `one_time` lesson type** — the fee is charged once per
+  week claimed, so the agreement states the per-lesson amount and the total as a
+  ceiling ("up to 12 lessons, 678.00 CAD in total"). The occurrence count mirrors
+  `BookingEndpoint::MAX_WEEKLY_OCCURRENCES`; a slot another student takes first is
+  simply not claimed, so the real charge can come in under it.
+- **`weekly` / `monthly`** — nothing is taken at registration, so the agreement is
+  to the recurring charge: "I agree to pay 56.50 CAD per lesson, billed monthly."
+  A monthly **group class** agrees to its monthly figure instead ("I agree to pay
+  138.00 CAD monthly."), matching how its price is quoted on the card.
+
+All of this lives in `assets/js/pricing.js` (`window.usPricing`), shared by the
+booking and group-class flows so a price reads the same wherever it is met. The
+script is registered as `us-scheduler-pricing` and is a dependency of both
+`us-scheduler` and `us-scheduler-group`.
+
 ## Payment Flow
 1. During registration the front-end calls `POST /payments/intent` — but only when the registration response carried a `payment` summary (unpriced registrations return `payment: null` and skip the payment step). The intent call creates a Stripe PaymentIntent for a `card` student and returns the client secret. (`etransfer` returns a `pending` payment; `comp` returns none.)
 2. The browser confirms the card payment with Stripe.
@@ -102,6 +158,24 @@ After booking, the destination on a payment can be corrected per booking:
 4. On transition to `paid`, `ReceiptMailer` assigns a `receipt_number`, emails the student a receipt, and stamps `receipt_sent_at`.
 5. For an e-transfer, the studio admin later calls `PATCH /payments/{id}` to mark it `paid`, which triggers the same confirmation + receipt.
 
+## Scheduled Billing (weekly / monthly)
+`weekly` and `monthly` offerings are **not** charged at registration. The booking /
+enrolment succeeds with `payment: null`; the lesson is confirmed (or the enrolment stays
+active) immediately, and payments are generated later by the daily
+`us_generate_due_payments` cron scan (`Payment\ScheduledBillingRunner`). Each generated
+payment carries a `due_date` and `period_key`, flows through the same
+`PaymentService::createForRegistration` (so HST, method resolution, e-transfer freezing
+and comp auto-pay are identical), and the student is emailed one consolidated itemised
+notice per scan (`Payment\PaymentDueMailer`). Because these payments are scheduled,
+`PaymentService::voidPending` never voids them — cancelling one lesson leaves a shared
+monthly charge (and every other lesson it covers) untouched, and never rebills. Full
+model, dedup, and the four generation cases are documented in `scheduled-billing.md`.
+
+Cancelling a lesson that was **already paid** issues the student an account credit for
+that lesson's share of what they paid; the next daily scan applies any available credit
+against their due charges (reducing `us_payments.credit_applied` → `Payment::netDue()`)
+before emailing the notice. See `credits.md`.
+
 ## REST API
 | Method  | Endpoint                                    | Permission                  |
 |---------|---------------------------------------------|-----------------------------|
@@ -118,8 +192,10 @@ See `payment-reporting.md` for the monthly report and CSV export endpoints.
 - Receipts: `Unsupervised\Schedular\Payment\ReceiptMailer`
 - Settings page: `Unsupervised\Schedular\Payment\StudioSettings`
 - REST endpoint: `Unsupervised\Schedular\Payment\PaymentEndpoint`
+- Front-end price display + pay agreement: `assets/js/pricing.js` (`window.usPricing`), registered and localized with `taxRate` by `Unsupervised\Schedular\ShortcodeRegistrar`
 
 ## Tests
+- `tests/Unit/ShortcodeRegistrarTest.php` (pricing helper registration + localized `taxRate`)
 - `tests/Unit/Payment/PaymentRepositoryTest.php`
 - `tests/Unit/Payment/PaymentTest.php`
 - `tests/Unit/Payment/StripeGatewayTest.php`

docs/features/plugin-self-update.md

@@ -50,9 +50,16 @@ update for a same-slug plugin and makes core fire the
 4. When newer, returns the release's first `.zip` asset as the update
    package. Core takes over from there: Plugins-screen notice, one-click
    update, and WP-Cron auto-updates if enabled.
+5. When not newer — the site is current, or the lookup failed — returns a
+   `no_update` payload (installed version, empty package). This keeps the
+   plugin in core's `update_plugins` transient so core's `update-supported`
+   flag stays set and the **Enable auto-updates** toggle shows on the
+   Plugins screen. Without it, an off-directory plugin is absent from the
+   transient between releases and the toggle never appears.
 
 Any API failure, malformed response, or asset-less release degrades to
-"no update available" — never an error surfaced to the site.
+"no update available" (the `no_update` payload) — never an error surfaced
+to the site, and never a lost auto-update toggle during a Gitea blip.
 
 ## Cutting a Release
 1. Bump the version in `unsupervised-schedular.php` (both the `Version:`

docs/features/policies.md

@@ -40,14 +40,22 @@ The studio admin drafts, versions, and publishes policies (e.g. cancellation, pa
 
 ## Versioning & Acceptance Rules
 - Editing a published policy creates a new `draft` version; the old version stays `published` until the draft is published.
+- Editing a `draft` version rewrites it in place — nobody has accepted it yet, so there is nothing to preserve and no new version is created. `PATCH /policies/{id}/versions/{vid}` allows only this case; the admin page also accepts an edit to a `published` or `archived` version and branches a new draft from it.
 - Publishing a draft sets it `published`, stamps `published_at`, archives the prior version, and points `us_policies.current_version_id` at it.
 - The registration gate requires acceptance of the `current_version_id` of every policy. Because acceptance is tied to `policy_version_id`, a newly published version is unaccepted and must be re-accepted at the student's next booking.
 
 ## Admin Interface
 **Policies** in wp-admin (`manage_policies`, studio admin only):
-- Create a policy; draft and edit version bodies
+- Create a policy; draft version bodies
+- View the content of any version (`?page=us-policies&policy_id={id}&version_id={vid}`), whatever its status
+- Edit from the viewer: a draft is saved in place; editing a published or archived version instead saves the text as a **new draft version** (the viewer follows to it), so text students have already accepted is never rewritten
 - Publish a draft version; view acceptance history per version
 
+## Rendering a Policy Body
+Bodies are typed into a plain textarea, so most are written as blank-line-separated prose with no markup. `PolicyVersion::bodyHtml()` is the single render path — `wp_kses_post()` then `wpautop()`, the same treatment WordPress gives post content — so unmarked-up text arrives as real paragraphs and bodies that do carry markup are left alone. It feeds the booking/enrolment JSON (`GET /policies`), the signup form, and the admin version viewer, which therefore previews exactly what students see.
+
+The acceptance markup (`.us-policy` / `.us-policy-body`) is styled in `assets/css/frontend.css` as a bounded, vertically scrolling reading box with `overflow-wrap: break-word`, so a long policy or a pasted URL cannot force a horizontal scrollbar or push the accept checkbox out of view. `RegistrationPage` enqueues that stylesheet for the signup gate; `BookingPage` and `GroupClassPage` already did.
+
 ## REST API
 | Method   | Endpoint                                                        | Permission        |
 |----------|-----------------------------------------------------------------|-------------------|
@@ -74,3 +82,5 @@ cover every policy's current version or the registration is rejected.
 - `tests/Unit/Policy/PolicyVersionRepositoryTest.php`
 - `tests/Unit/Policy/AcceptanceRepositoryTest.php`
 - `tests/Unit/Policy/PolicyServiceTest.php`
+- `tests/Unit/Policy/PolicyControllerTest.php`
+- `tests/Unit/Policy/PolicyEndpointTest.php`

docs/features/registration-questions.md

@@ -80,6 +80,7 @@ through the server-rendered admin page and read directly by `RegistrationPage`.
 - Signup step two: `Unsupervised\Schedular\Auth\RegistrationPage`, `templates/frontend/register-page.php`, `assets/js/register.js`
 - Admin review: `Unsupervised\Schedular\Auth\StudentHistory::registrationInfo()`, `templates/admin/student-detail.php`
 - Schema: `us_questions.scope` + nullable `us_questions.offering_id` (requires a plugin version bump so `dbDelta` runs)
+- Nullability repair: `dbDelta` does **not** reliably relax a column from `NOT NULL` to `NULL`, so sites created before account-scope questions kept `offering_id NOT NULL` and rejected account inserts. `QuestionRepository::ensureOfferingNullable()` re-applies the nullable definition (idempotent `ALTER … MODIFY`); `Plugin::boot()` runs it once, guarded by the `us_questions_offering_nullable` option rather than the version gate (affected sites may already be on the current version)
 
 ## Tests
 - `tests/Unit/Registration/QuestionRepositoryTest.php`

docs/features/scheduled-billing.md

@@ -0,0 +1,96 @@
+# Feature: Scheduled Billing (weekly / monthly)
+
+## Overview
+Two offering billing modes defer payment past registration and generate pending
+payments on a recurring schedule:
+
+- **`weekly`** — one payment per lesson, due **24 hours before** that lesson.
+- **`monthly`** — one payment per calendar month, due on the **1st**, covering every
+  lesson that falls in the month. A **private lesson**'s fee is per lesson, so the
+  month costs (#lessons) × fee. A **group class**'s fee is per month: the class is
+  billed that fee once for the month, however many times it meets in it.
+
+Both apply to **private lessons** and **group classes**. At registration the
+booking/enrolment succeeds with `payment: null` (no payment step); the lesson is
+confirmed / the enrolment stays active immediately. Payments are created later by a daily
+WP-Cron scan, and the student is emailed one consolidated notice per scan. Collection
+uses the existing rails (e-transfer confirmed by the studio admin, or card) — there is no
+automatic card charging.
+
+## The daily scan — `Payment\ScheduledBillingRunner`
+Hooked to the WP-Cron action **`us_generate_due_payments`** (scheduled `daily` by
+`Installer`, cleared on plugin deactivation). `run()` is self-healing: it re-derives
+everything due from current ledger state each run, so a missed day is simply picked up
+next time. Every payment is created through `PaymentService::createForRegistration` (HST,
+method resolution, e-transfer freezing, comp auto-pay reused) with a `due_date` and
+`period_key` set.
+
+### The four generation cases
+| Source | When it bills | Amount | Dedup |
+|--------|---------------|--------|-------|
+| **Private weekly** | lesson `start_dt` ≤ now + 24h | 1 × fee | `us_lessons.payment_id` set on the lesson |
+| **Private monthly** | the lesson's month's 1st ≤ today | (#lessons in month) × fee | `payment_id` set on every lesson in the month |
+| **Group weekly** | session (from `Offering::sessionWindows()`) − 1 day ≤ now | 1 × fee | `us_payments.period_key` = session date |
+| **Group monthly** | the month's 1st ≤ today | 1 × fee (a monthly class is priced per month, not per session) | `period_key` = `YYYY-MM` |
+
+- Private lessons dedup on `us_lessons.payment_id IS NULL` — a lesson with no payment is
+  unbilled. A monthly group links its earliest lesson via `createForRegistration` and the
+  runner points the remaining lessons at the same payment.
+- Group enrolments (one row per whole term) dedup on `period_key` via
+  `PaymentRepository::existsForPeriod()`, since one enrolment maps to many periodic
+  charges.
+- Only offerings with a positive price are billed; cancelled lessons are excluded, so a
+  lesson cancelled before its payment is generated is simply never billed.
+
+### Late bookings charge at booking time
+A single scheduled lesson booked **after** its due date has already passed is charged at
+booking instead of deferred (`BookingEndpoint::scheduledDueHasPassed`): an extra monthly
+lesson added to a month that was already billed (its 1st has arrived), or a weekly lesson
+booked within 24 hours of the session. These create a normal at-registration payment (no
+`due_date`), so the fee is collected once, at booking, and never billed late by the scan.
+This applies only to single bookings — a weekly reservation series always defers, each
+lesson billed by the scan on its own schedule.
+
+## Notification — `Payment\PaymentDueMailer`
+As the runner creates each **pending** payment it appends an itemised line to that
+student's notice bucket; after all cases run it sends **one** email per student with a
+line per item (label · due date · amount) and a grand total, plus the e-transfer
+destination(s). A student billed for several lessons on one day is emailed once, never
+per lesson. Comp payments (auto-paid) are not bucketed.
+
+### Notice batch (lump-sum reconciliation)
+All the payments in one student's notice are tagged with a shared **notice batch**
+reference (`us_payments.notice_batch`, `PaymentRepository::assignNoticeBatch`), which is
+printed on the email so the student can quote it. In the **Payments** admin queue those
+payments are shown grouped under that reference with a combined lump-sum total
+(`PaymentController::groupPending`), so when one e-transfer arrives for the whole notice
+the admin can see exactly which pending payments — and therefore which bookings — it
+covers. Each is still confirmed individually with **Mark received**. Legacy
+at-registration payments have no batch and appear on their own.
+
+## Cancellation
+Scheduled payments are never auto-voided. `PaymentService::voidPending` acts only on
+legacy at-registration payments (`! Payment::isScheduled()`), so cancelling one lesson
+never voids a shared monthly charge, never refunds, and never rebills.
+
+Cancelling a lesson that was **already paid** credits the student one lesson's share
+of what they paid (`PaymentService::creditForCancelledLesson`), and the next scan
+applies that credit against their due charges before emailing the notice
+(`PaymentService::applyCredits`). See `credits.md` for the full model.
+
+## Implementation
+- Runner: `Unsupervised\Schedular\Payment\ScheduledBillingRunner`
+- Notice email: `Unsupervised\Schedular\Payment\PaymentDueMailer`
+- Finders: `Booking\BookingRepository::findUnbilledScheduledLessons`,
+  `GroupClass\EnrollmentRepository::findActiveByBillingModes`
+- Dedup: `Payment\PaymentRepository::existsForPeriod`
+- Session windows: `Offering\Offering::sessionWindows`
+- Cron scheduling: `Installer::scheduleBilling`; cleared in `unsupervised-schedular.php`
+  deactivation hook.
+
+## Tests
+- `tests/Unit/Payment/ScheduledBillingRunnerTest.php`
+- `tests/Unit/Payment/PaymentDueMailerTest.php`
+- `tests/Unit/Payment/PaymentRepositoryTest.php` (`existsForPeriod`, `due_date`/`period_key`)
+- `tests/Unit/Payment/PaymentServiceTest.php` (`voidPending` skips scheduled)
+- `tests/Unit/Booking/BookingEndpointTest.php` / `tests/Unit/GroupClass/EnrollmentEndpointTest.php` (deferred payment)

docs/features/student-administration.md

@@ -33,6 +33,10 @@ No new tables. The views are composed from existing data:
     and when it was accepted.
   - **Intake answers** — every registration-question answer, newest first:
     question label, answer, and the registration it was given for.
+  - **Account credit** (`manage_billing` only) — the student's available credit
+    balance plus every credit (date, reason, amount, remaining, status). Credit
+    comes from cancelled paid lessons and is applied automatically to upcoming
+    scheduled billing. See `credits.md`.
   - **Payment history** (`manage_billing` only) — every payment, newest first:
     date, context, method, status, subtotal, HST, total, and receipt number.
 
@@ -44,7 +48,8 @@ All actions are nonce-protected POSTs handled on the detail page:
 - **Cancel lesson** — on any non-cancelled upcoming lesson. Uses the same path
   as student-initiated cancellation: the lesson is marked `cancelled`, the
   availability slot is freed for rebooking, and a still-pending payment is
-  voided. Paid lessons keep their payment — refunds stay a manual decision (#72).
+  voided. A paid lesson is credited back to the student's account (see
+  `credits.md`) rather than refunded.
 - **Withdraw** — on an active group-class enrolment: marked `cancelled` (freeing
   its capacity seat), with the same pending-payment voiding.
 

src/AdminMenu.php

@@ -17,6 +17,7 @@ use Unsupervised\Schedular\Auth\StudentController;
 use Unsupervised\Schedular\Auth\StudentHistory;
 use Unsupervised\Schedular\Booking\BookingRepository;
 use Unsupervised\Schedular\Booking\LessonController;
+use Unsupervised\Schedular\Booking\LessonDetail;
 use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
 use Unsupervised\Schedular\GroupClass\GroupAccessRepository;
 use Unsupervised\Schedular\GroupClass\GroupClassController;
@@ -24,6 +25,7 @@ use Unsupervised\Schedular\Offering\ClassSlotReconciler;
 use Unsupervised\Schedular\Offering\OfferingController;
 use Unsupervised\Schedular\Offering\OfferingRepository;
 use Unsupervised\Schedular\Payment\BillingMethodResolver;
+use Unsupervised\Schedular\Payment\CreditRepository;
 use Unsupervised\Schedular\Payment\PaymentController;
 use Unsupervised\Schedular\Payment\PaymentReportController;
 use Unsupervised\Schedular\Payment\PaymentRepository;
@@ -55,16 +57,16 @@ class AdminMenu {
 	private PaymentController $paymentController;
 	private PaymentReportController $paymentReportController;
 
-	public function __construct( AvailabilityRepository $availability, BookingRepository $bookings, OfferingRepository $offerings, QuestionRepository $questions, AnswerRepository $answers, PolicyRepository $policies, PolicyVersionRepository $policyVersions, PolicyService $policyService, AcceptanceRepository $acceptances, InviteRepository $invites, EnrollmentRepository $enrollments, GroupAccessRepository $groupAccess, StudioSettings $settings, PaymentRepository $payments, PaymentService $paymentService, BillingMethodResolver $resolver, RegistrationMailer $registrationMailer ) {
+	public function __construct( AvailabilityRepository $availability, BookingRepository $bookings, OfferingRepository $offerings, QuestionRepository $questions, AnswerRepository $answers, PolicyRepository $policies, PolicyVersionRepository $policyVersions, PolicyService $policyService, AcceptanceRepository $acceptances, InviteRepository $invites, EnrollmentRepository $enrollments, GroupAccessRepository $groupAccess, StudioSettings $settings, PaymentRepository $payments, PaymentService $paymentService, BillingMethodResolver $resolver, RegistrationMailer $registrationMailer, CreditRepository $credits ) {
 		$this->availabilityController         = new AvailabilityController( $availability, $offerings );
-		$this->lessonController               = new LessonController( $bookings, $payments, $availability );
+		$this->lessonController               = new LessonController( $bookings, $payments, $availability, $offerings, new LessonDetail( $answers, $questions, $acceptances, $policies, $policyVersions ) );
 		$this->offeringController             = new OfferingController( $offerings, new ClassSlotReconciler( $availability ) );
 		$this->questionController             = new QuestionController( $questions, $offerings );
 		$this->policyController               = new PolicyController( $policies, $policyVersions, $policyService );
 		$this->registrationController         = new RegistrationController( $invites );
 		$this->registrationApprovalController = new RegistrationApprovalController( $registrationMailer );
 		$this->groupClassController           = new GroupClassController( $enrollments, $offerings, $payments, $groupAccess, $paymentService, $invites, $registrationMailer );
-		$this->studentController              = new StudentController( $bookings, $availability, $offerings, $enrollments, $resolver, new StudentHistory( $acceptances, $policies, $policyVersions, $answers, $questions, $payments ), new StudentActions( $bookings, $availability, $enrollments, $paymentService ) );
+		$this->studentController              = new StudentController( $bookings, $availability, $offerings, $enrollments, $resolver, new StudentHistory( $acceptances, $policies, $policyVersions, $answers, $questions, $payments, $credits ), new StudentActions( $bookings, $availability, $enrollments, $paymentService ) );
 		$this->instructorController           = new InstructorController();
 		$this->settings                       = $settings;
 		$this->accessSettings                 = new AccessSettings();

src/Auth/RegistrationPage.php

@@ -30,6 +30,13 @@ class RegistrationPage {
 	 */
 	private const RESULT_CONFIRM_GROUP = 'confirm_group';
 
+	/**
+	 * Validation error from the most recent submission processed on
+	 * `template_redirect`, carried over to {@see render()} so it can be shown
+	 * inline with the form. Empty when the last submit succeeded or none ran.
+	 */
+	private string $submitError = '';
+
 	public function __construct(
 		private InviteRepository $invites,
 		private PolicyRepository $policies,
@@ -45,15 +52,37 @@ class RegistrationPage {
 	/**
 	 * Renders the student registration shortcode output.
 	 *
-	 * @param array<int|string, mixed> $atts Block attributes (`loginPageId`) or
-	 *                                       shortcode attributes (`login_page_id`).
+	 * @param array<int|string, mixed> $atts Block attributes (`loginPageId`,
+	 *                                       `inviteOnlyMessage`) or shortcode
+	 *                                       attributes (`login_page_id`,
+	 *                                       `invite_only_message`).
 	 */
 	public function render( array $atts ): string {
+		// A just-completed invite signup is redirected back here already logged
+		// in (see maybeHandleSubmit); its success flag distinguishes that from a
+		// visitor who simply happens to be signed in already.
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only display flag; the submit that set it was nonce-checked.
+		$registered = sanitize_key( Val::string( wp_unslash( $_GET['us_registered'] ?? '' ) ) );
+
 		if ( is_user_logged_in() ) {
-			return '<p>' . esc_html__( 'You already have an account and are logged in.', 'unsupervised-schedular' ) . '</p>';
+			// Both logged-in outcomes are dead ends without somewhere to go next,
+			// so both offer the same "continue" link to the configured page.
+			wp_enqueue_style( 'us-scheduler' );
+			$link = $this->continueLink( $atts );
+
+			if ( self::RESULT_INVITE === $registered ) {
+				// An invited student is done the moment they land here logged in.
+				return '<div class="us-register-form"><p class="us-success">'
+					. esc_html__( 'Your account has been created and you are now logged in.', 'unsupervised-schedular' )
+					. '</p>' . $link . '</div>';
+			}
+
+			return '<div class="us-register-form"><p>'
+				. esc_html__( 'You already have an account and are logged in.', 'unsupervised-schedular' )
+				. '</p>' . $link . '</div>';
 		}
 
-		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- token identifies the invite; the form submit is nonce-checked below.
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- token identifies the invite; the form submit is nonce-checked in maybeHandleSubmit.
 		$token = sanitize_text_field( Val::string( wp_unslash( $_REQUEST['us_invite'] ?? '' ) ) );
 		// Only the token's hash is stored, so hash the submitted token for lookup.
 		$invite = '' !== $token ? $this->invites->findByToken( Invite::hashToken( $token ) ) : null;
@@ -65,28 +94,28 @@ class RegistrationPage {
 		// fail to submit — the stale invite's address.
 		$inviteValid = null !== $invite && $invite->isAcceptable( current_time( 'mysql' ) );
 
-		$error       = '';
-		$successType = '';
-
-		if ( isset( $_POST['us_register'] ) && check_admin_referer( 'us_student_register' ) ) {
-			$result = $this->handleSubmit( $invite, $open );
-			if ( in_array( $result, [ self::RESULT_INVITE, self::RESULT_CONFIRM, self::RESULT_CONFIRM_GROUP ], true ) ) {
-				$successType = $result;
-			} else {
-				$error = $result;
-			}
-		}
+		// The submission itself is processed in maybeHandleSubmit on
+		// template_redirect (before any output), so the invite auto-login cookie
+		// is actually sent. Its success signal returns here as ?us_registered;
+		// only a validation error is carried on the instance to show inline.
+		$successType = in_array( $registered, [ self::RESULT_CONFIRM, self::RESULT_CONFIRM_GROUP ], true ) ? $registered : '';
+		$error       = $this->submitError;
 
 		// Result of an email-confirmation link (set by EmailConfirmationHandler's redirect).
 		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only display flag, not a state change.
 		$confirmResult = sanitize_key( Val::string( wp_unslash( $_GET['us_confirmed'] ?? '' ) ) );
 
 		// Where the post-confirmation prompt sends students to sign in.
-		$loginUrl = $this->loginUrl( Val::int( $atts['loginPageId'] ?? $atts['login_page_id'] ?? 0 ) );
+		$loginUrl = $this->loginUrl( $this->successPageId( $atts ) );
 
-		$policyForms      = $this->signupPolicies();
-		$accountQuestions = $this->questions->findByScope( Question::SCOPE_ACCOUNT, activeOnly: true );
-		$canRegister      = $open || $inviteValid;
+		$policyForms       = $this->signupPolicies();
+		$accountQuestions  = $this->questions->findByScope( Question::SCOPE_ACCOUNT, activeOnly: true );
+		$canRegister       = $open || $inviteValid;
+		$inviteOnlyMessage = $this->inviteOnlyMessage( $atts );
+
+		// The signup form carries the same policy-acceptance markup as the booking
+		// gate, so it needs the plugin stylesheet that formats it.
+		wp_enqueue_style( 'us-scheduler' );
 
 		// The two-step script only matters when there is a second step to reveal.
 		if ( $canRegister && '' === $successType && [] !== $accountQuestions ) {
@@ -98,6 +127,77 @@ class RegistrationPage {
 		return (string) ob_get_clean();
 	}
 
+	/**
+	 * Process a submitted registration on `template_redirect`, before any page
+	 * output. Running here (rather than inside {@see render()}, which fires
+	 * during `the_content` after headers are sent) is what lets the invite
+	 * branch's `wp_set_auth_cookie()` actually persist — otherwise the student
+	 * appears logged in for a single render and is logged out on the next view.
+	 *
+	 * On success the request is redirected (post/redirect/get) with a
+	 * `?us_registered` flag so a refresh cannot resubmit; a validation error is
+	 * stashed for {@see render()} to show inline with the form.
+	 */
+	public function maybeHandleSubmit(): void {
+		if ( ! isset( $_POST['us_register'] ) || is_user_logged_in() ) {
+			return;
+		}
+
+		if ( ! check_admin_referer( 'us_student_register' ) ) {
+			return;
+		}
+
+		// phpcs:ignore WordPress.Security.NonceVerification.Missing -- verified by check_admin_referer above.
+		$token  = sanitize_text_field( Val::string( wp_unslash( $_REQUEST['us_invite'] ?? '' ) ) );
+		$invite = '' !== $token ? $this->invites->findByToken( Invite::hashToken( $token ) ) : null;
+		$open   = $this->settings->openRegistrationEnabled();
+
+		$result = $this->handleSubmit( $invite, $open );
+
+		if ( in_array( $result, [ self::RESULT_INVITE, self::RESULT_CONFIRM, self::RESULT_CONFIRM_GROUP ], true ) ) {
+			$this->redirect( add_query_arg( 'us_registered', $result, $this->currentUrl() ) );
+			return;
+		}
+
+		$this->submitError = $result;
+	}
+
+	/**
+	 * The current page's clean permalink, used as the post/redirect/get target
+	 * so the invite token and any stale flags are dropped from the URL.
+	 */
+	private function currentUrl(): string {
+		$url = get_permalink();
+
+		return is_string( $url ) ? $url : home_url( '/' );
+	}
+
+	/**
+	 * Issues the post-submit redirect and stops the request. Split out so tests
+	 * can observe the target without the process exiting.
+	 */
+	protected function redirect( string $url ): void {
+		wp_safe_redirect( $url );
+		exit;
+	}
+
+	/**
+	 * The message shown when registration is closed and no valid invite is
+	 * present. Studios can override the default via the block
+	 * (`inviteOnlyMessage`) or shortcode (`invite_only_message`) attribute.
+	 *
+	 * @param array<int|string, mixed> $atts
+	 */
+	private function inviteOnlyMessage( array $atts ): string {
+		$custom = trim( Val::string( $atts['inviteOnlyMessage'] ?? $atts['invite_only_message'] ?? '' ) );
+
+		if ( '' !== $custom ) {
+			return $custom;
+		}
+
+		return esc_html__( 'Registration is by invitation only. Please use the link from your invitation email, or contact the studio.', 'unsupervised-schedular' );
+	}
+
 	/**
 	 * Redirect to the configured registration page when an invite token lands
 	 * elsewhere (e.g. a link generated before the page was selected). Hooked on
@@ -231,21 +331,102 @@ class RegistrationPage {
 		return $autoApprove ? self::RESULT_CONFIRM_GROUP : self::RESULT_CONFIRM;
 	}
 
+	/**
+	 * The page id chosen for the post-registration destination, from either the
+	 * block (`loginPageId`) or shortcode (`login_page_id`) attribute.
+	 *
+	 * @param array<int|string, mixed> $atts
+	 */
+	private function successPageId( array $atts ): int {
+		return Val::int( $atts['loginPageId'] ?? $atts['login_page_id'] ?? 0 );
+	}
+
 	/**
 	 * URL the post-confirmation sign-in link points to: the chosen login page
 	 * when one is configured (and still exists), otherwise the WordPress login
 	 * screen.
 	 */
 	private function loginUrl( int $loginPageId ): string {
-		if ( $loginPageId > 0 ) {
-			$url = get_permalink( $loginPageId );
+		return $this->continueUrl( $loginPageId ) ?? wp_login_url();
+	}
 
-			if ( is_string( $url ) ) {
-				return $url;
-			}
+	/**
+	 * The "continue" paragraph shown to a logged-in visitor, or an empty string
+	 * when no destination page is configured. The link names the chosen page, so
+	 * the visitor knows where it goes before clicking; an untitled page falls
+	 * back to generic wording rather than reading "Continue to ".
+	 *
+	 * The sign-in-page fallback {@see loginUrl()} applies is deliberately not
+	 * used here: pointing someone who is already signed in at the login screen is
+	 * the same dead end with extra steps, so no link is better than that one.
+	 *
+	 * @param array<int|string, mixed> $atts
+	 */
+	private function continueLink( array $atts ): string {
+		$pageId   = $this->successPageId( $atts );
+		$continue = $this->continueUrl( $pageId );
+
+		if ( null === $continue ) {
+			return '';
 		}
 
-		return wp_login_url();
+		$title = trim( Val::string( get_the_title( $pageId ) ) );
+		$label = '' === $title
+			? esc_html__( 'Continue to your account', 'unsupervised-schedular' )
+			: esc_html(
+				sprintf(
+					/* translators: %s: title of the page the student continues to. */
+					__( 'Continue to %s', 'unsupervised-schedular' ),
+					$title
+				)
+			);
+
+		return '<p><a href="' . esc_url( $continue ) . '">' . $label . '</a></p>';
+	}
+
+	/**
+	 * The chosen post-registration page's URL, or null when none is configured
+	 * (or it has since been deleted). Unlike {@see loginUrl()} this has no
+	 * WordPress-login-screen fallback, so callers that need a page the student
+	 * was actually sent to — the invited-student link and the block's
+	 * auto-redirect — can tell "not configured" from "configured".
+	 */
+	public function continueUrl( int $pageId ): ?string {
+		if ( $pageId <= 0 ) {
+			return null;
+		}
+
+		$url = get_permalink( $pageId );
+
+		return is_string( $url ) ? $url : null;
+	}
+
+	/**
+	 * Whether this request is a *finished* registration — the states the
+	 * block's auto-redirect may act on:
+	 *
+	 * - an invited student who just signed up and is now logged in, and
+	 * - a self-signup returning from the emailed confirmation link, whether
+	 *   their account is ready (`ready`) or awaiting studio approval (`1`).
+	 *
+	 * Deliberately excluded: the intermediate "check your email" step (the
+	 * student would never see the instruction) and every failure — a validation
+	 * error or an expired confirmation link (`expired`) — so the message always
+	 * gets shown. The `us_confirmed` values are set by
+	 * {@see EmailConfirmationHandler::maybeConfirm()}.
+	 */
+	public function isRegistrationComplete(): bool {
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only display flag; the submit that set it was nonce-checked.
+		$registered = sanitize_key( Val::string( wp_unslash( $_GET['us_registered'] ?? '' ) ) );
+
+		if ( self::RESULT_INVITE === $registered ) {
+			return is_user_logged_in();
+		}
+
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only display flag set by EmailConfirmationHandler's redirect.
+		$confirmed = sanitize_key( Val::string( wp_unslash( $_GET['us_confirmed'] ?? '' ) ) );
+
+		return in_array( $confirmed, [ '1', 'ready' ], true );
 	}
 
 	/**

src/Auth/StudentActions.php

@@ -27,8 +27,9 @@ class StudentActions {
 
 	/**
 	 * Cancel a lesson on the student's behalf: marks it cancelled, frees the
-	 * slot for rebooking, and voids a still-pending payment. Paid lessons keep
-	 * their payment — refunds are a manual, admin-side decision.
+	 * slot for rebooking, and voids a still-pending payment. A paid lesson is
+	 * credited back to the student's account (a per-lesson share of what they
+	 * paid) to offset their future scheduled billing.
 	 */
 	public function cancelLesson( int $lessonId, int $studentId ): bool {
 		$lesson = $this->bookings->findById( $lessonId );
@@ -40,6 +41,7 @@ class StudentActions {
 		$this->bookings->updateStatus( $lessonId, Lesson::STATUS_CANCELLED );
 		$this->availability->release( $lesson->slotId );
 		$this->payments->voidPending( $lesson->paymentId );
+		$this->payments->creditForCancelledLesson( $lesson );
 
 		return true;
 	}

src/Auth/StudentAdminGuard.php

@@ -0,0 +1,103 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Auth;
+
+/**
+ * Keeps front-end-only users (students) out of wp-admin entirely.
+ *
+ * Students authenticate through the front-end login shortcode and do all of
+ * their work — booking, viewing lessons, paying — on the site's public pages.
+ * They have no reason to see the WordPress dashboard, profile screen, or admin
+ * bar, so this guard redirects them to the front end if they reach wp-admin and
+ * hides the admin bar for them everywhere.
+ *
+ * Access is decided by capability, not role: anyone holding a back-office
+ * capability (a WordPress administrator, studio admin, or instructor) keeps full
+ * wp-admin access, while a user with none of them is treated as front-end only.
+ */
+class StudentAdminGuard {
+
+	/**
+	 * Capabilities that grant a genuine reason to be in wp-admin. A user holding
+	 * none of these is front-end only and is kept out of the dashboard.
+	 *
+	 * @var list<string>
+	 */
+	private const BACK_OFFICE_CAPS = [
+		'manage_options',
+		RoleManager::CAP_MANAGE_INSTRUCTORS,
+		RoleManager::CAP_MANAGE_STUDENTS,
+		RoleManager::CAP_MANAGE_OFFERINGS,
+		RoleManager::CAP_MANAGE_QUESTIONS,
+		RoleManager::CAP_MANAGE_POLICIES,
+		RoleManager::CAP_MANAGE_BILLING,
+		RoleManager::CAP_MANAGE_AVAILABILITY,
+		RoleManager::CAP_VIEW_ALL_LESSONS,
+		RoleManager::CAP_VIEW_ALL_PAYMENTS,
+		RoleManager::CAP_VIEW_OWN_PAYMENTS,
+		RoleManager::CAP_EXPORT_PAYMENTS,
+	];
+
+	public function register(): void {
+		add_action( 'admin_init', [ $this, 'redirectFromDashboard' ] );
+		add_filter( 'show_admin_bar', [ $this, 'hideAdminBar' ] );
+	}
+
+	/**
+	 * Redirect a front-end-only user away from any wp-admin page to the site
+	 * home, so the dashboard and profile screens are never reachable.
+	 */
+	public function redirectFromDashboard(): void {
+		if ( ! $this->shouldBlockAdminAccess() ) {
+			return;
+		}
+
+		wp_safe_redirect( home_url( '/' ) );
+		exit;
+	}
+
+	/**
+	 * Whether the current request into wp-admin should be bounced to the front
+	 * end. AJAX requests are always allowed through so front-end features that
+	 * call admin-ajax keep working.
+	 */
+	public function shouldBlockAdminAccess(): bool {
+		if ( wp_doing_ajax() ) {
+			return false;
+		}
+
+		if ( ! is_user_logged_in() ) {
+			return false;
+		}
+
+		return ! $this->hasBackOfficeAccess();
+	}
+
+	/**
+	 * Hide the admin bar for front-end-only users; leave it untouched for anyone
+	 * with back-office access.
+	 *
+	 * @param bool $show Whether WordPress would otherwise show the admin bar.
+	 */
+	public function hideAdminBar( bool $show ): bool {
+		if ( is_user_logged_in() && ! $this->hasBackOfficeAccess() ) {
+			return false;
+		}
+
+		return $show;
+	}
+
+	/**
+	 * Whether the current user holds any capability that warrants wp-admin access.
+	 */
+	private function hasBackOfficeAccess(): bool {
+		foreach ( self::BACK_OFFICE_CAPS as $cap ) {
+			if ( current_user_can( $cap ) ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+}

src/Auth/StudentController.php

@@ -149,11 +149,24 @@ class StudentController {
 		$registrationInfo = $this->history->registrationInfo( (int) $student->ID );
 		$intake           = $this->history->intakeAnswers( (int) $student->ID );
 		$payments         = $canBilling ? $this->history->payments( (int) $student->ID ) : [];
+		$credits          = $canBilling ? $this->history->credits( (int) $student->ID ) : [];
+		$creditBalance    = $canBilling ? $this->history->creditBalance( (int) $student->ID ) : 0.0;
+		$creditCurrency   = $this->creditCurrency( $credits );
 
 		$backUrl = admin_url( 'admin.php?page=us-students' );
 		include USC_PLUGIN_DIR . 'templates/admin/student-detail.php';
 	}
 
+	/**
+	 * Currency to label the credit balance with — taken from the student's credits
+	 * (they share a currency in practice), defaulting to CAD when they have none.
+	 *
+	 * @param list<array{created_at: string, amount: float, remaining: float, currency: string, reason: string, status: string}> $credits
+	 */
+	private function creditCurrency( array $credits ): string {
+		return [] !== $credits ? (string) $credits[0]['currency'] : 'CAD';
+	}
+
 	/**
 	 * Build a display row for a lesson (slot time, offering, instructor, status).
 	 *

src/Auth/StudentHistory.php

@@ -3,6 +3,8 @@ declare(strict_types=1);
 
 namespace Unsupervised\Schedular\Auth;
 
+use Unsupervised\Schedular\Payment\Credit;
+use Unsupervised\Schedular\Payment\CreditRepository;
 use Unsupervised\Schedular\Payment\Payment;
 use Unsupervised\Schedular\Payment\PaymentRepository;
 use Unsupervised\Schedular\Policy\AcceptanceRepository;
@@ -27,6 +29,7 @@ class StudentHistory {
 		private AnswerRepository $answers,
 		private QuestionRepository $questions,
 		private PaymentRepository $payments,
+		private CreditRepository $credits,
 	) {}
 
 	/**
@@ -129,6 +132,34 @@ class StudentHistory {
 		);
 	}
 
+	/**
+	 * The student's total unused credit balance (from cancelled paid lessons),
+	 * applied automatically against future scheduled-billing charges.
+	 */
+	public function creditBalance( int $studentId ): float {
+		return $this->credits->availableBalance( $studentId );
+	}
+
+	/**
+	 * Every credit the student has been issued, newest first, with the amount, what
+	 * remains, and its state.
+	 *
+	 * @return list<array{created_at: string, amount: float, remaining: float, currency: string, reason: string, status: string}>
+	 */
+	public function credits( int $studentId ): array {
+		return array_map(
+			static fn( Credit $credit ): array => [
+				'created_at' => $credit->createdAt ?? '',
+				'amount'     => $credit->amount,
+				'remaining'  => $credit->remaining,
+				'currency'   => $credit->currency,
+				'reason'     => $credit->reason ?? '—',
+				'status'     => $credit->status,
+			],
+			$this->credits->findByStudent( $studentId )
+		);
+	}
+
 	/**
 	 * Human label for a polymorphic registration target.
 	 */

src/BlockPreview.php

@@ -15,7 +15,23 @@ namespace Unsupervised\Schedular;
  */
 class BlockPreview {
 
-	public static function booking(): string {
+	/**
+	 * Sample booking page.
+	 *
+	 * @param string $mode Which halves the block embeds — one of
+	 *                     {@see Booking\BookingPage::MODE_BOTH},
+	 *                     `MODE_BOOKING` or `MODE_UPCOMING`. The preview shows
+	 *                     the same sections the published page would.
+	 */
+	public static function booking( string $mode = Booking\BookingPage::MODE_BOTH ): string {
+		if ( Booking\BookingPage::MODE_UPCOMING === $mode ) {
+			return sprintf(
+				'<div id="us-booking-app">%s<div id="us-my-lessons">%s</div></div>',
+				self::note( __( 'Editor preview — students see their own lessons on the published page.', 'unsupervised-schedular' ) ),
+				self::upcomingLessons()
+			);
+		}
+
 		$days = [
 			[
 				'label' => __( 'Monday', 'unsupervised-schedular' ),
@@ -51,20 +67,65 @@ class BlockPreview {
 			);
 		}
 
+		$lessons = Booking\BookingPage::MODE_BOOKING === $mode
+			? ''
+			: sprintf( '<div id="us-my-lessons">%s</div>', self::upcomingLessons() );
+
 		return sprintf(
-			'<div id="us-booking-app">%s<div id="us-slot-list">%s</div></div>',
+			'<div id="us-booking-app">%s%s<div id="us-slot-list">%s</div></div>',
 			self::note( __( 'Editor preview — students see live availability on the published page.', 'unsupervised-schedular' ) ),
+			$lessons,
 			$dayHtml
 		);
 	}
 
-	public static function groupClasses(): string {
+	/**
+	 * Sample "your upcoming lessons" panel, shared by the booking preview's
+	 * full and upcoming-only modes.
+	 */
+	private static function upcomingLessons(): string {
 		return sprintf(
-			'<div id="us-group-app">%s<div id="us-group-list"><div class="us-class"><h3>%s</h3><p>%s</p><p>%s</p><p>25.00 CAD</p><button type="button" class="us-enrol-btn" disabled>%s</button></div></div></div>',
-			self::note( __( 'Editor preview — students see live group classes on the published page.', 'unsupervised-schedular' ) ),
+			'<div class="us-my-lessons"><h3>%s</h3>'
+			. '<div class="us-my-lesson"><div class="us-my-lesson-info">'
+			. '<strong class="us-my-lesson-title">%s <span class="us-my-lesson-duration">(30 min)</span></strong>'
+			. '<span class="us-my-lesson-when">%s</span></div>'
+			. '<div class="us-my-lesson-actions">'
+			. '<span class="us-lesson-status us-lesson-status-confirmed">%s</span>'
+			. '<button type="button" class="us-cancel-lesson" disabled>%s</button>'
+			. '</div></div></div>',
+			esc_html__( 'Your upcoming lessons', 'unsupervised-schedular' ),
+			esc_html__( 'Piano Lesson', 'unsupervised-schedular' ),
+			esc_html__( 'Monday · 4:00 PM–4:30 PM', 'unsupervised-schedular' ),
+			esc_html__( 'Confirmed', 'unsupervised-schedular' ),
+			esc_html__( 'Cancel', 'unsupervised-schedular' )
+		);
+	}
+
+	/**
+	 * Sample group-class card.
+	 *
+	 * @param bool $singleClass Whether the block is pinned to one class, in
+	 *                          which case the live page omits the class
+	 *                          description and the preview does too.
+	 */
+	public static function groupClasses( bool $singleClass = false ): string {
+		$note = $singleClass
+			? __( 'Editor preview — the published page shows the chosen class with its live schedule and enrolment status.', 'unsupervised-schedular' )
+			: __( 'Editor preview — students see live group classes on the published page.', 'unsupervised-schedular' );
+
+		$description = $singleClass
+			? ''
+			: '<p>' . esc_html__( 'A sample class shown so the page can be styled.', 'unsupervised-schedular' ) . '</p>';
+
+		return sprintf(
+			'<div id="us-group-app">%s<div id="us-group-list"><div class="us-class"><h3>%s</h3><p class="us-class-when">%s</p>%s<p class="us-class-price">%s</p><p class="us-enrol-deadline">%s</p><button type="button" class="us-enrol-btn" disabled>%s</button></div></div></div>',
+			self::note( $note ),
 			esc_html__( 'Beginner Group Class', 'unsupervised-schedular' ),
 			esc_html__( 'Saturdays 10:00 AM–11:00 AM', 'unsupervised-schedular' ),
-			esc_html__( 'A sample class shown so the page can be styled.', 'unsupervised-schedular' ),
+			$description,
+			// Prices on the live page always carry their cadence, so the sample does too.
+			esc_html__( '25.00 CAD up front', 'unsupervised-schedular' ),
+			esc_html__( 'Enrol by Sep 6, 2026', 'unsupervised-schedular' ),
 			esc_html__( 'Enrol', 'unsupervised-schedular' )
 		);
 	}

src/BlockRegistrar.php

@@ -85,11 +85,23 @@ class BlockRegistrar {
 			'us-scheduler/booking'          => [
 				'render'     => [ $this, 'renderBooking' ],
 				'attributes' => [
-					'loginPageId'  => [
+					'loginPageId'    => [
 						'type'    => 'number',
 						'default' => 0,
 					],
-					'autoRedirect' => $redirectToggle,
+					'autoRedirect'   => $redirectToggle,
+					'lessonTypeId'   => [
+						'type'    => 'number',
+						'default' => 0,
+					],
+					'showTypeFilter' => [
+						'type'    => 'boolean',
+						'default' => true,
+					],
+					'displayMode'    => [
+						'type'    => 'string',
+						'default' => BookingPage::MODE_BOTH,
+					],
 				],
 			],
 			'us-scheduler/student-login'    => [
@@ -105,10 +117,15 @@ class BlockRegistrar {
 			'us-scheduler/student-register' => [
 				'render'     => [ $this, 'renderRegistration' ],
 				'attributes' => [
-					'loginPageId' => [
+					'loginPageId'       => [
 						'type'    => 'number',
 						'default' => 0,
 					],
+					'autoRedirect'      => $redirectToggle,
+					'inviteOnlyMessage' => [
+						'type'    => 'string',
+						'default' => '',
+					],
 				],
 			],
 			'us-scheduler/group-classes'    => [
@@ -129,7 +146,11 @@ class BlockRegistrar {
 	 * @param array<string, mixed> $attributes Block attributes.
 	 */
 	public function renderBooking( array $attributes = [] ): string {
-		return $this->isEditorPreview() ? BlockPreview::booking() : $this->bookingPage->render( $attributes );
+		if ( ! $this->isEditorPreview() ) {
+			return $this->bookingPage->render( $attributes );
+		}
+
+		return BlockPreview::booking( Val::string( $attributes['displayMode'] ?? BookingPage::MODE_BOTH ) );
 	}
 
 	/**
@@ -156,16 +177,21 @@ class BlockRegistrar {
 	 * @param array<string, mixed> $attributes Block attributes.
 	 */
 	public function renderGroupClasses( array $attributes = [] ): string {
-		return $this->isEditorPreview() ? BlockPreview::groupClasses() : $this->groupClassPage->render( $attributes );
+		if ( ! $this->isEditorPreview() ) {
+			return $this->groupClassPage->render( $attributes );
+		}
+
+		return BlockPreview::groupClasses( Val::int( $attributes['offeringId'] ?? 0 ) > 0 );
 	}
 
 	/**
 	 * Server-side auto-redirect for blocks that opt in via their autoRedirect
 	 * attribute: logged-out visitors on a page containing the booking block
-	 * are sent to its login page, and logged-in visitors on a page containing
-	 * the student-login block are sent to its booking page. Hooked on
-	 * `template_redirect` because block rendering happens after output has
-	 * started, too late to send a Location header.
+	 * are sent to its login page, logged-in visitors on a page containing the
+	 * student-login block are sent to its booking page, and a student who has
+	 * just finished registering is sent to the register block's chosen page.
+	 * Hooked on `template_redirect` because block rendering happens after
+	 * output has started, too late to send a Location header.
 	 */
 	public function maybeAutoRedirect(): void {
 		if ( is_admin() || ! is_singular() ) {
@@ -177,6 +203,10 @@ class BlockRegistrar {
 			return;
 		}
 
+		if ( $this->maybeRedirectAfterRegistration( $post ) ) {
+			return;
+		}
+
 		if ( is_user_logged_in() ) {
 			$attrs = $this->firstBlockAttrs( $post->post_content, 'us-scheduler/student-login' );
 			if ( null === $attrs || ! Val::bool( $attrs['autoRedirect'] ?? false ) ) {
@@ -209,6 +239,45 @@ class BlockRegistrar {
 		$this->redirect( $this->bookingPage->loginUrl( $loginPageId ) );
 	}
 
+	/**
+	 * Sends a student whose registration has just completed to the register
+	 * block's chosen page, when the block opts in. Only the finished states
+	 * qualify (see {@see RegistrationPage::isRegistrationComplete()}): a
+	 * failure or the "check your email" step stays put so its message is read.
+	 * Unlike the other blocks there is no login-screen fallback — with no page
+	 * chosen there is nowhere to send them, so the link is shown instead.
+	 *
+	 * Returns whether the redirect was issued (it only ever returns in tests;
+	 * {@see redirect()} exits in production).
+	 */
+	private function maybeRedirectAfterRegistration( \WP_Post $post ): bool {
+		// Checked before parsing the content because it is a couple of query
+		// args, whereas every front-end request would otherwise pay for a
+		// third block scan.
+		if ( ! $this->registrationPage->isRegistrationComplete() ) {
+			return false;
+		}
+
+		$attrs = $this->firstBlockAttrs( $post->post_content, 'us-scheduler/student-register' );
+		if ( null === $attrs || ! Val::bool( $attrs['autoRedirect'] ?? false ) ) {
+			return false;
+		}
+
+		$pageId = Val::int( $attrs['loginPageId'] ?? 0 );
+		if ( $pageId === $post->ID ) {
+			return false; // Redirecting the page to itself would loop.
+		}
+
+		$url = $this->registrationPage->continueUrl( $pageId );
+		if ( null === $url ) {
+			return false;
+		}
+
+		$this->redirect( $url );
+
+		return true;
+	}
+
 	/**
 	 * Attributes of the first occurrence of the named block in the content,
 	 * searching inner blocks so blocks nested inside groups or columns are

src/Booking/BookingEndpoint.php

@@ -123,17 +123,27 @@ class BookingEndpoint {
 	}
 
 	/**
-	 * A lesson's array form plus its slot's start/end times, so front-end lists
-	 * can show when the session happens without a second request.
+	 * A lesson's array form plus its slot's start/end times and the booked
+	 * offering's name, so front-end lists can show what the session is and when
+	 * it happens without a second request.
 	 *
 	 * @return array<string, mixed>
 	 */
 	private function lessonWithTimes( Lesson $lesson ): array {
-		$slot = $this->availability->findById( $lesson->slotId );
+		$slot     = $this->availability->findById( $lesson->slotId );
+		$offering = null !== $lesson->offeringId ? $this->offerings->findById( $lesson->offeringId ) : null;
+
+		// Prefer the offering's own length; fall back to the slot's when the
+		// offering has none (a generic, duration-less type).
+		$duration = null !== $offering && null !== $offering->durationMinutes
+			? $offering->durationMinutes
+			: $slot?->durationMinutes;
 
 		return $lesson->toArray() + [
-			'start_dt' => $slot?->startDt,
-			'end_dt'   => $slot?->endDt,
+			'start_dt'         => $slot?->startDt,
+			'end_dt'           => $slot?->endDt,
+			'offering_title'   => $offering?->title,
+			'duration_minutes' => $duration,
 		];
 	}
 
@@ -249,7 +259,16 @@ class BookingEndpoint {
 		$payment = null;
 		$status  = Lesson::STATUS_PENDING;
 
-		if ( $offering->price > 0.0 ) {
+		// Scheduled billing (weekly / monthly) normally defers payment to the daily
+		// scan, but a single lesson booked once its scheduled due date has already
+		// passed — e.g. an extra lesson added to a month that was already billed — is
+		// charged at booking instead, so it is never missed or billed late.
+		$chargeAtBooking = $offering->price > 0.0 && (
+			! $offering->isScheduledBilling()
+			|| ( 1 === count( $ids ) && $this->scheduledDueHasPassed( $offering, $slot->startDt ) )
+		);
+
+		if ( $chargeAtBooking ) {
 			// A full-term price already covers the whole reservation; a per-lesson
 			// (one_time) price is owed once per occurrence actually claimed, so a
 			// weekly reservation cannot hold a term while paying for one week.
@@ -263,8 +282,10 @@ class BookingEndpoint {
 				$status = Lesson::STATUS_CONFIRMED;
 			}
 		} else {
-			// Free offering: there is no payment step that would confirm these
-			// lessons later, so they are confirmed at booking time.
+			// Either a free offering, or scheduled billing (weekly / monthly) whose
+			// payment is deferred to the daily billing scan. Either way there is no
+			// payment step now to confirm the lessons, so the reserved slots are
+			// confirmed at booking time; the billing scan bills them when they come due.
 			foreach ( $ids as $lessonId ) {
 				$this->bookings->updateStatus( $lessonId, Lesson::STATUS_CONFIRMED );
 			}
@@ -296,6 +317,23 @@ class BookingEndpoint {
 		return $out;
 	}
 
+	/**
+	 * Whether a scheduled-billing offering's due date for a given session has
+	 * already passed at booking time. Weekly bills 24 hours before the lesson;
+	 * monthly bills on the 1st, so its due moment has passed once "now" is in the
+	 * lesson's month or later. Only meaningful for weekly / monthly offerings.
+	 */
+	private function scheduledDueHasPassed( Offering $offering, string $slotStart ): bool {
+		$now   = new \DateTimeImmutable( Val::string( current_time( 'mysql' ) ) );
+		$start = new \DateTimeImmutable( $slotStart );
+
+		if ( Offering::BILLING_MONTHLY === $offering->billingMode ) {
+			return $now->format( 'Y-m-d' ) >= $start->format( 'Y-m-01' );
+		}
+
+		return $now >= $start->modify( '-1 day' );
+	}
+
 	private function clientIp(): ?string {
 		// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- IP stored verbatim for audit.
 		$ip = sanitize_text_field( Val::string( wp_unslash( $_SERVER['REMOTE_ADDR'] ?? '' ) ) );
@@ -305,8 +343,9 @@ class BookingEndpoint {
 
 	/**
 	 * Student-initiated cancellation of their own lesson: marks it cancelled,
-	 * frees the slot for rebooking, and voids any still-pending payment. Paid
-	 * lessons keep their payment — refunds are a manual, admin-side decision.
+	 * frees the slot for rebooking, and voids any still-pending payment. A lesson
+	 * already paid for is credited back to the student's account (a per-lesson
+	 * share of the covering payment) to offset their future scheduled billing.
 	 */
 	public function cancel( \WP_REST_Request $request ): \WP_REST_Response|\WP_Error {
 		$id     = absint( Val::int( $request->get_param( 'id' ) ) );
@@ -341,6 +380,7 @@ class BookingEndpoint {
 			$this->bookings->updateStatus( $id, Lesson::STATUS_CANCELLED );
 			$this->availability->release( $lesson->slotId );
 			$this->payments->voidPending( $lesson->paymentId );
+			$this->payments->creditForCancelledLesson( $lesson );
 		}
 
 		return new \WP_REST_Response(
@@ -369,6 +409,7 @@ class BookingEndpoint {
 		if ( Lesson::STATUS_CANCELLED === $status && Lesson::STATUS_CANCELLED !== $lesson->status ) {
 			$this->availability->release( $lesson->slotId );
 			$this->payments->voidPending( $lesson->paymentId );
+			$this->payments->creditForCancelledLesson( $lesson );
 		} elseif ( Lesson::STATUS_CANCELLED === $lesson->status && Lesson::STATUS_CANCELLED !== $status && ! $this->availability->claim( $lesson->slotId ) ) {
 			// Reinstating a cancelled lesson must re-reserve its slot, and
 			// someone else may have booked the freed time in the meantime.

src/Booking/BookingPage.php

@@ -9,11 +9,30 @@ use Unsupervised\Schedular\Val;
 
 class BookingPage {
 
+	/** Booking calendar and the student's upcoming lessons (the default). */
+	public const MODE_BOTH = 'both';
+
+	/** Booking calendar only — no upcoming-lessons panel. */
+	public const MODE_BOOKING = 'booking';
+
+	/** The student's upcoming lessons only — nothing bookable. */
+	public const MODE_UPCOMING = 'upcoming';
+
 	/**
 	 * Renders the booking shortcode/block output.
 	 *
-	 * @param array<int|string, mixed> $atts Block attributes (`loginPageId`) or
-	 *                                       shortcode attributes (`login_page_id`).
+	 * Supported attributes (block / shortcode form):
+	 * - `loginPageId` / `login_page_id` — where logged-out visitors are sent.
+	 * - `lessonTypeId` / `lesson_type` — a private-lesson offering id that pins
+	 *   the calendar to one lesson type: only the times bookable as that type
+	 *   are listed, and only it can be booked. 0 or absent shows every type.
+	 * - `showTypeFilter` / `show_filter` — whether the "Show Only" lesson-type
+	 *   filter is offered (default true; irrelevant when a type is pinned).
+	 * - `displayMode` / `show` — which halves of the page to embed:
+	 *   {@see self::MODE_BOTH} (default), {@see self::MODE_BOOKING} (calendar
+	 *   only) or {@see self::MODE_UPCOMING} (the student's lessons only).
+	 *
+	 * @param array<int|string, mixed> $atts Block or shortcode attributes.
 	 */
 	public function render( array $atts ): string {
 		if ( ! is_user_logged_in() ) {
@@ -38,11 +57,42 @@ class BookingPage {
 		wp_enqueue_style( 'us-scheduler' );
 		wp_enqueue_script( 'us-scheduler' );
 
+		$lessonTypeId   = absint( Val::int( $atts['lessonTypeId'] ?? $atts['lesson_type'] ?? 0 ) );
+		$showTypeFilter = self::toBool( $atts['showTypeFilter'] ?? $atts['show_filter'] ?? true );
+
+		$mode         = self::mode( $atts['displayMode'] ?? $atts['show'] ?? self::MODE_BOTH );
+		$showBooking  = self::MODE_UPCOMING !== $mode;
+		$showUpcoming = self::MODE_BOOKING !== $mode;
+
 		ob_start();
 		include USC_PLUGIN_DIR . 'templates/frontend/booking-page.php';
 		return (string) ob_get_clean();
 	}
 
+	/**
+	 * Normalises the display-mode attribute; anything unrecognised embeds the
+	 * whole page, so a typo never silently hides half of it.
+	 */
+	private static function mode( mixed $value ): string {
+		$mode = strtolower( trim( Val::string( $value ) ) );
+
+		return in_array( $mode, [ self::MODE_BOOKING, self::MODE_UPCOMING ], true ) ? $mode : self::MODE_BOTH;
+	}
+
+	/**
+	 * Reads a boolean attribute. Block attributes arrive as real booleans,
+	 * shortcode attributes as strings — where the words people actually write
+	 * for "off" ("no", "false", "off") are all truthy to PHP, so they are
+	 * matched explicitly rather than cast.
+	 */
+	private static function toBool( mixed $value ): bool {
+		if ( is_string( $value ) ) {
+			return ! in_array( strtolower( trim( $value ) ), [ '', '0', 'no', 'false', 'off' ], true );
+		}
+
+		return Val::bool( $value );
+	}
+
 	/**
 	 * URL the logged-out prompt sends visitors to: the chosen login page when
 	 * one is configured (and still exists), otherwise the WordPress login

src/Booking/BookingRepository.php

@@ -204,6 +204,76 @@ class BookingRepository {
 		return array_map( Lesson::fromRow( ... ), $rows ?? [] );
 	}
 
+	/**
+	 * Not-yet-billed lessons on a scheduled-billing (weekly / monthly) offering:
+	 * status not cancelled and no payment attached yet. Each row carries the slot
+	 * start time and the offering's billing fields so the daily billing scan can
+	 * decide what is due without a second query per lesson. Ordered by student,
+	 * offering and time so the scan can group a student's monthly lessons cheaply.
+	 *
+	 * @return list<\stdClass> Rows: id, student_id, instructor_id, offering_id,
+	 *                         start_dt, billing_mode, title, price, currency,
+	 *                         etransfer_email.
+	 */
+	public function findUnbilledScheduledLessons(): array {
+		$avTable  = str_replace( 'us_lessons', 'us_availability', $this->table );
+		$offTable = str_replace( 'us_lessons', 'us_offerings', $this->table );
+
+		$rows = $this->db->get_results(
+			$this->db->prepare(
+				'SELECT l.id, l.student_id, l.instructor_id, l.offering_id,
+				        a.start_dt,
+				        o.billing_mode, o.title, o.price, o.currency, o.etransfer_email
+				 FROM %i l
+				 JOIN %i a ON a.id = l.slot_id
+				 JOIN %i o ON o.id = l.offering_id
+				 WHERE l.status != %s
+				   AND l.payment_id IS NULL
+				   AND o.billing_mode IN ( %s, %s )
+				 ORDER BY l.student_id ASC, l.offering_id ASC, a.start_dt ASC',
+				$this->table,
+				$avTable,
+				$offTable,
+				Lesson::STATUS_CANCELLED,
+				\Unsupervised\Schedular\Offering\Offering::BILLING_WEEKLY,
+				\Unsupervised\Schedular\Offering\Offering::BILLING_MONTHLY
+			)
+		);
+
+		return $rows ?? [];
+	}
+
+	/**
+	 * How many lessons a payment covers — every lesson pointed at it, cancelled or
+	 * not, since the payment was billed for all of them. Used to split a paid
+	 * payment's total into a per-lesson share when one covered lesson is cancelled
+	 * and credited. Never below zero.
+	 */
+	public function countByPaymentId( int $paymentId ): int {
+		return (int) $this->db->get_var(
+			$this->db->prepare(
+				'SELECT COUNT(*) FROM %i WHERE payment_id = %d',
+				$this->table,
+				$paymentId
+			)
+		);
+	}
+
+	/**
+	 * How many lessons belong to a weekly series — the whole reservation an upfront
+	 * (full-term) payment covers, so cancelling one lesson credits its per-lesson
+	 * share. Counts every lesson in the series, cancelled or not.
+	 */
+	public function countBySeries( int $seriesId ): int {
+		return (int) $this->db->get_var(
+			$this->db->prepare(
+				'SELECT COUNT(*) FROM %i WHERE series_id = %d',
+				$this->table,
+				$seriesId
+			)
+		);
+	}
+
 	public function setPaymentId( int $id, int $paymentId ): bool {
 		return false !== $this->db->update(
 			$this->table,

src/Booking/LessonController.php

@@ -7,6 +7,7 @@ use Unsupervised\Schedular\Auth\RoleManager;
 use Unsupervised\Schedular\Availability\AvailabilityRepository;
 use Unsupervised\Schedular\Availability\AvailabilitySlot;
 use Unsupervised\Schedular\Availability\WeekCalendar;
+use Unsupervised\Schedular\Offering\OfferingRepository;
 use Unsupervised\Schedular\Payment\Payment;
 use Unsupervised\Schedular\Payment\PaymentRepository;
 use Unsupervised\Schedular\Val;
@@ -17,6 +18,8 @@ class LessonController {
 		private BookingRepository $repository,
 		private PaymentRepository $payments,
 		private AvailabilityRepository $availability,
+		private OfferingRepository $offerings,
+		private LessonDetail $detail,
 	) {}
 
 	public function renderAdminDashboard(): void {
@@ -24,6 +27,10 @@ class LessonController {
 			wp_die( esc_html__( 'You do not have permission to view this page.', 'unsupervised-schedular' ) );
 		}
 
+		if ( $this->maybeRenderDetail( 'us-scheduler', false ) ) {
+			return;
+		}
+
 		$this->handleEtransferUpdate( false );
 
 		$rows = array_map( fn( Lesson $lesson ): array => $this->row( $lesson ), $this->repository->findAllUpcoming() );
@@ -36,6 +43,10 @@ class LessonController {
 			wp_die( esc_html__( 'You do not have permission to view lessons.', 'unsupervised-schedular' ) );
 		}
 
+		if ( $this->maybeRenderDetail( 'us-my-lessons', true ) ) {
+			return;
+		}
+
 		$this->handleEtransferUpdate( true );
 
 		$rows = array_map( fn( Lesson $lesson ): array => $this->row( $lesson ), $this->repository->findUpcomingForInstructor( get_current_user_id() ) );
@@ -43,6 +54,36 @@ class LessonController {
 		$this->renderLessonsPage( $rows, 'us-my-lessons' );
 	}
 
+	/**
+	 * When the request targets a single lesson (`?lesson_id=`), render its detail
+	 * view and report that the page has been handled. Instructors may only open
+	 * their own lessons; the studio dashboard ($onlyOwn = false) may open any.
+	 */
+	private function maybeRenderDetail( string $pageSlug, bool $onlyOwn ): bool {
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only lesson selector.
+		$lessonId = absint( Val::int( $_GET['lesson_id'] ?? 0 ) );
+		if ( $lessonId <= 0 ) {
+			return false;
+		}
+
+		$lesson  = $this->repository->findById( $lessonId );
+		$backUrl = admin_url( 'admin.php?page=' . $pageSlug );
+
+		if ( null === $lesson || ( $onlyOwn && get_current_user_id() !== $lesson->instructorId ) ) {
+			$row     = null;
+			$answers = [];
+			$accepts = [];
+		} else {
+			$row     = $this->row( $lesson );
+			$answers = $this->detail->answers( $lessonId );
+			$accepts = $this->detail->acceptances( $lessonId );
+		}
+
+		include USC_PLUGIN_DIR . 'templates/admin/lesson-detail.php';
+
+		return true;
+	}
+
 	/**
 	 * Render the lessons template with its calendar view state: week (default)
 	 * or list, plus which week the week view shows.
@@ -111,10 +152,15 @@ class LessonController {
 		$instructor = get_userdata( $lesson->instructorId );
 		$payment    = null !== $lesson->paymentId ? $this->payments->findById( $lesson->paymentId ) : null;
 		$slot       = $this->availability->findById( $lesson->slotId );
+		$offering   = null !== $lesson->offeringId ? $this->offerings->findById( $lesson->offeringId ) : null;
 
 		return [
+			'lesson_id'          => (int) $lesson->id,
 			'student'            => $student ? $student->display_name : (string) $lesson->studentId,
 			'instructor'         => $instructor ? $instructor->display_name : (string) $lesson->instructorId,
+			'offering'           => $offering ? $offering->title : '—',
+			'duration'           => null !== $offering && null !== $offering->durationMinutes ? $offering->durationMinutes : 0,
+			'recurrence'         => $lesson->recurrence,
 			'time'               => $slot ? $this->formatSlotTime( $slot ) : '—',
 			'day'                => $slot ? substr( $slot->startDt, 0, 10 ) : '',
 			'time_short'         => $slot ? Val::string( mysql2date( 'g:i A', $slot->startDt ) ) : '—',

src/Booking/LessonDetail.php

@@ -0,0 +1,73 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Booking;
+
+use Unsupervised\Schedular\Policy\AcceptanceRepository;
+use Unsupervised\Schedular\Policy\PolicyAcceptance;
+use Unsupervised\Schedular\Policy\PolicyRepository;
+use Unsupervised\Schedular\Policy\PolicyVersionRepository;
+use Unsupervised\Schedular\Registration\Answer;
+use Unsupervised\Schedular\Registration\AnswerRepository;
+use Unsupervised\Schedular\Registration\QuestionRepository;
+
+/**
+ * Builds the display rows for the admin lesson detail view: the intake answers
+ * the student submitted and the policy versions they accepted when booking.
+ *
+ * Scoped to a single lesson (the `lesson` registration type), mirroring the
+ * per-student history in {@see \Unsupervised\Schedular\Auth\StudentHistory}.
+ */
+class LessonDetail {
+
+	public function __construct(
+		private AnswerRepository $answers,
+		private QuestionRepository $questions,
+		private AcceptanceRepository $acceptances,
+		private PolicyRepository $policies,
+		private PolicyVersionRepository $versions,
+	) {}
+
+	/**
+	 * The intake-question answers recorded for this lesson, in submission order.
+	 *
+	 * @return list<array{question: string, answer: string}>
+	 */
+	public function answers( int $lessonId ): array {
+		return array_map(
+			function ( Answer $answer ): array {
+				$question = $this->questions->findById( $answer->questionId );
+				$value    = $answer->answerValue ?? '';
+
+				return [
+					'question' => $question ? $question->label : sprintf( '#%d', $answer->questionId ),
+					'answer'   => '' === $value ? '—' : $value,
+				];
+			},
+			$this->answers->findByRegistration( Answer::REG_LESSON, $lessonId )
+		);
+	}
+
+	/**
+	 * The policy versions the student accepted when booking this lesson, with the
+	 * captured acceptance time and IP for the audit trail.
+	 *
+	 * @return list<array{policy: string, version: string, accepted_at: string, ip: string}>
+	 */
+	public function acceptances( int $lessonId ): array {
+		return array_map(
+			function ( PolicyAcceptance $acceptance ): array {
+				$version = $this->versions->findById( $acceptance->policyVersionId );
+				$policy  = $version ? $this->policies->findById( $version->policyId ) : null;
+
+				return [
+					'policy'      => $policy ? $policy->title : sprintf( '#%d', $acceptance->policyVersionId ),
+					'version'     => $version ? sprintf( 'v%d', $version->versionNumber ) : '—',
+					'accepted_at' => $acceptance->acceptedAt ?? '',
+					'ip'          => $acceptance->ipAddress ?? '',
+				];
+			},
+			$this->acceptances->findByRegistration( PolicyAcceptance::REG_LESSON, $lessonId )
+		);
+	}
+}

src/GroupClass/EnrollmentEndpoint.php

@@ -59,6 +59,18 @@ class EnrollmentEndpoint {
 				],
 			]
 		);
+
+		register_rest_route(
+			$route_namespace,
+			'/enrollments/(?P<id>\d+)/withdraw',
+			[
+				[
+					'methods'             => \WP_REST_Server::CREATABLE,
+					'callback'            => [ $this, 'withdraw' ],
+					'permission_callback' => [ $this, 'isLoggedIn' ],
+				],
+			]
+		);
 	}
 
 	public function index( \WP_REST_Request $request ): \WP_REST_Response { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found
@@ -95,6 +107,12 @@ class EnrollmentEndpoint {
 			return new \WP_Error( 'invite_required', __( 'This class is by invitation only.', 'unsupervised-schedular' ), [ 'status' => 403 ] );
 		}
 
+		// Enrolment closes at the end of the deadline day — the instructor's set
+		// deadline, or the first class day by default.
+		if ( ! $offering->isEnrollmentOpen( Val::string( current_time( 'Y-m-d' ) ) ) ) {
+			return new \WP_Error( 'enrollment_closed', __( 'Enrolment for this class has closed.', 'unsupervised-schedular' ), [ 'status' => 403 ] );
+		}
+
 		if ( null !== $offering->capacity && $this->enrollments->countActiveForOffering( $offeringId ) >= $offering->capacity ) {
 			return new \WP_Error( 'class_full', __( 'This class is full.', 'unsupervised-schedular' ), [ 'status' => 409 ] );
 		}
@@ -123,8 +141,11 @@ class EnrollmentEndpoint {
 			$this->access->markEnrolled( $offeringId, $studentId );
 		}
 
+		// Scheduled billing (weekly / monthly) is generated later by the daily
+		// billing scan, so nothing is charged at enrolment; the enrolment is active
+		// regardless of payment.
 		$payment = null;
-		if ( $offering->price > 0.0 ) {
+		if ( $offering->price > 0.0 && ! $offering->isScheduledBilling() ) {
 			$payment = $this->payments->createForRegistration( Payment::REG_ENROLLMENT, $id, $studentId, $offering->instructorId, $offering->price, $offering->currency, $offering->etransferEmail );
 		}
 
@@ -139,6 +160,50 @@ class EnrollmentEndpoint {
 		);
 	}
 
+	/**
+	 * Withdraw the current student from a group class they enrolled in. Allowed
+	 * only while the offering's withdrawal deadline is open (a class with no
+	 * deadline set stays open indefinitely); once it passes, the student must
+	 * contact the studio and an admin withdraws them by hand. A timely withdrawal
+	 * frees the seat and voids any still-pending payment but never issues an
+	 * account credit — that is reserved for cancelled lessons.
+	 */
+	public function withdraw( \WP_REST_Request $request ): \WP_REST_Response|\WP_Error {
+		$id         = absint( Val::int( $request->get_param( 'id' ) ) );
+		$enrollment = $this->enrollments->findById( $id );
+
+		if ( null === $enrollment ) {
+			return new \WP_Error( 'not_found', __( 'Enrolment not found.', 'unsupervised-schedular' ), [ 'status' => 404 ] );
+		}
+
+		if ( get_current_user_id() !== $enrollment->studentId ) {
+			return new \WP_Error( 'forbidden', __( 'You cannot withdraw from this class.', 'unsupervised-schedular' ), [ 'status' => 403 ] );
+		}
+
+		if ( Enrollment::STATUS_ACTIVE === $enrollment->status ) {
+			$offering = $this->offerings->findById( $enrollment->offeringId );
+
+			if ( null !== $offering && ! $offering->isWithdrawalOpen( Val::string( current_time( 'Y-m-d' ) ) ) ) {
+				return new \WP_Error(
+					'withdrawal_closed',
+					__( 'Withdrawal for this class has closed. Please contact the studio.', 'unsupervised-schedular' ),
+					[ 'status' => 403 ]
+				);
+			}
+
+			$this->enrollments->updateStatus( $id, Enrollment::STATUS_CANCELLED );
+			$this->payments->voidPending( $enrollment->paymentId );
+		}
+
+		return new \WP_REST_Response(
+			[
+				'id'     => $id,
+				'status' => Enrollment::STATUS_CANCELLED,
+			],
+			200
+		);
+	}
+
 	public function isLoggedIn(): bool {
 		return is_user_logged_in();
 	}

src/GroupClass/EnrollmentRepository.php

@@ -132,6 +132,39 @@ class EnrollmentRepository {
 		return array_map( Enrollment::fromRow( ... ), $rows ?? [] );
 	}
 
+	/**
+	 * Active enrolments whose group class bills on a scheduled mode (weekly /
+	 * monthly) — the source rows for the daily billing scan. Filtered by joining
+	 * the offering so only classes actually on a scheduled plan are returned.
+	 *
+	 * @param list<string> $modes Billing modes to include (e.g. weekly, monthly).
+	 * @return list<Enrollment>
+	 */
+	public function findActiveByBillingModes( array $modes ): array {
+		if ( [] === $modes ) {
+			return [];
+		}
+
+		$offTable     = str_replace( 'us_group_enrollments', 'us_offerings', $this->table );
+		$placeholders = implode( ', ', array_fill( 0, count( $modes ), '%s' ) );
+
+		$rows = $this->db->get_results(
+			$this->db->prepare(
+				"SELECT e.* FROM %i e
+				 JOIN %i o ON o.id = e.offering_id
+				 WHERE e.status = %s
+				   AND o.billing_mode IN ( {$placeholders} )
+				 ORDER BY e.student_id ASC, e.offering_id ASC",
+				$this->table,
+				$offTable,
+				Enrollment::STATUS_ACTIVE,
+				...$modes
+			)
+		);
+
+		return array_map( Enrollment::fromRow( ... ), $rows ?? [] );
+	}
+
 	public function setPaymentId( int $id, int $paymentId ): bool {
 		return false !== $this->db->update(
 			$this->table,

src/GroupClass/GroupClassController.php

@@ -176,7 +176,7 @@ class GroupClassController {
 	 * invite-only classes — the list of people invited but not yet enrolled.
 	 *
 	 * @param list<Enrollment> $enrollments
-	 * @return array{id: int|null, title: string, when: string, capacity: int|null, enrolled: int, invite_only: bool, instructor: string, price: float, currency: string, duration: int|null, description: string|null, schedule_note: string|null, active: bool, roster: list<array{student: string, status: string, payment: string|null}>, invited: list<array{who: string, kind: string}>}
+	 * @return array{id: int|null, title: string, when: string, capacity: int|null, enrolled: int, invite_only: bool, instructor: string, price: float, currency: string, duration: int|null, description: string|null, schedule_note: string|null, deadline: string, enrollment_open: bool, active: bool, roster: list<array{student: string, status: string, payment: string|null}>, invited: list<array{who: string, kind: string}>}
 	 */
 	private function classDetail( Offering $offering, array $enrollments ): array {
 		$roster = [];
@@ -195,16 +195,20 @@ class GroupClassController {
 			];
 		}
 
+		$deadline = $offering->effectiveEnrollmentDeadline();
+
 		return $this->classSummary( $offering, $enrollments ) + [
-			'instructor'    => $this->instructorName( $offering ),
-			'price'         => $offering->price,
-			'currency'      => $offering->currency,
-			'duration'      => $offering->durationMinutes,
-			'description'   => $offering->description,
-			'schedule_note' => $offering->scheduleNote,
-			'active'        => $offering->isActive,
-			'roster'        => $roster,
-			'invited'       => $offering->isInviteOnly() ? $this->pendingInvites( (int) $offering->id ) : [],
+			'instructor'      => $this->instructorName( $offering ),
+			'price'           => $offering->price,
+			'currency'        => $offering->currency,
+			'duration'        => $offering->durationMinutes,
+			'description'     => $offering->description,
+			'schedule_note'   => $offering->scheduleNote,
+			'deadline'        => null !== $deadline ? (string) mysql2date( 'M j, Y', $deadline ) : '',
+			'enrollment_open' => $offering->isEnrollmentOpen( Val::string( current_time( 'Y-m-d' ) ) ),
+			'active'          => $offering->isActive,
+			'roster'          => $roster,
+			'invited'         => $offering->isInviteOnly() ? $this->pendingInvites( (int) $offering->id ) : [],
 		];
 	}
 
@@ -312,6 +316,10 @@ class GroupClassController {
 	 * Directly enrol registered students, each with a pending payment at the
 	 * class price (comp students are settled immediately by the payment service).
 	 *
+	 * This is the instructor's manual enrolment path and deliberately bypasses the
+	 * enrolment deadline and capacity, so a student can be added as a late
+	 * enrolment after the class has closed to self-enrolment.
+	 *
 	 * @param list<int> $studentIds
 	 */
 	private function addDirect( Offering $offering, array $studentIds ): string {

src/Installer.php

@@ -5,6 +5,7 @@ namespace Unsupervised\Schedular;
 
 use Unsupervised\Schedular\Auth\RoleManager;
 use Unsupervised\Schedular\Availability\AvailabilityRepository;
+use Unsupervised\Schedular\Payment\ScheduledBillingRunner;
 
 class Installer {
 
@@ -12,10 +13,22 @@ class Installer {
 		$this->createTables();
 		$this->migrateData();
 		( new RoleManager() )->createRoles();
+		$this->scheduleBilling();
 		flush_rewrite_rules();
 		update_option( 'us_schedular_version', USC_VERSION );
 	}
 
+	/**
+	 * Ensure the daily scheduled-billing scan is registered with WP-Cron. Runs on
+	 * activation and on every version-bump re-install, so an existing site that
+	 * predates the feature picks the event up on its next deploy.
+	 */
+	private function scheduleBilling(): void {
+		if ( false === wp_next_scheduled( ScheduledBillingRunner::HOOK ) ) {
+			wp_schedule_event( time(), 'daily', ScheduledBillingRunner::HOOK );
+		}
+	}
+
 	private function createTables(): void {
 		global $wpdb;
 		if ( ! $wpdb instanceof \wpdb ) {

src/Offering/Offering.php

@@ -20,12 +20,26 @@ class Offering {
 	public const BILLING_ONE_TIME  = 'one_time';
 	public const BILLING_FULL_TERM = 'full_term';
 
+	/** Billed 24 hours before each lesson, on a recurring schedule (see scheduled-billing.md). */
+	public const BILLING_WEEKLY = 'weekly';
+
+	/** Billed on the first of each month for every lesson that falls in the month. */
+	public const BILLING_MONTHLY = 'monthly';
+
 	/**
 	 * All valid billing modes.
 	 *
 	 * @var list<string>
 	 */
-	public const VALID_BILLING_MODES = [ self::BILLING_ONE_TIME, self::BILLING_FULL_TERM ];
+	public const VALID_BILLING_MODES = [ self::BILLING_ONE_TIME, self::BILLING_FULL_TERM, self::BILLING_WEEKLY, self::BILLING_MONTHLY ];
+
+	/**
+	 * Billing modes whose payment is generated later by the daily billing scan
+	 * rather than taken at registration.
+	 *
+	 * @var list<string>
+	 */
+	public const SCHEDULED_BILLING_MODES = [ self::BILLING_WEEKLY, self::BILLING_MONTHLY ];
 
 	/** Listed in the public catalogue; anyone with `book_lesson` may enrol. */
 	public const ACCESS_PUBLIC = 'public';
@@ -40,6 +54,15 @@ class Offering {
 	 */
 	public const VALID_ACCESS_MODES = [ self::ACCESS_PUBLIC, self::ACCESS_INVITE_ONLY ];
 
+	/** Maximum length of the title, matching the `title` VARCHAR(191) column. */
+	public const MAX_TITLE_LENGTH = 191;
+
+	/** Maximum length of the schedule note, matching the `schedule_note` VARCHAR(191) column. */
+	public const MAX_SCHEDULE_NOTE_LENGTH = 191;
+
+	/** Maximum length of the e-transfer email, matching the `etransfer_email` VARCHAR(191) column. */
+	public const MAX_ETRANSFER_EMAIL_LENGTH = 191;
+
 	public function __construct(
 		public readonly int $instructorId,
 		public readonly string $kind,
@@ -54,6 +77,8 @@ class Offering {
 		public readonly ?string $termStart = null,
 		public readonly ?string $termEnd = null,
 		public readonly ?string $classTime = null,
+		public readonly ?string $enrollmentDeadline = null,
+		public readonly ?string $withdrawalDeadline = null,
 		public readonly ?string $scheduleNote = null,
 		public readonly ?string $etransferEmail = null,
 		public readonly ?int $cancellationCutoffHours = null,
@@ -70,6 +95,48 @@ class Offering {
 		return self::ACCESS_INVITE_ONLY === $this->accessMode;
 	}
 
+	/**
+	 * Whether this offering's payment is deferred to the daily billing scan
+	 * (weekly / monthly) instead of being taken at registration.
+	 */
+	public function isScheduledBilling(): bool {
+		return in_array( $this->billingMode, self::SCHEDULED_BILLING_MODES, true );
+	}
+
+	/**
+	 * The last day on which a student may enrol in this group class. Defaults to
+	 * the first day of the class (`term_start`) when the instructor has not set an
+	 * explicit deadline; null only when the class has no dates at all.
+	 */
+	public function effectiveEnrollmentDeadline(): ?string {
+		return $this->enrollmentDeadline ?? $this->termStart;
+	}
+
+	/**
+	 * Whether enrolment is still open on `$today` (a `Y-m-d` date). Enrolment stays
+	 * open through the end of the deadline day, so the first class is still
+	 * enrollable under the default deadline. A class with no deadline at all (no
+	 * dates configured) is always open.
+	 */
+	public function isEnrollmentOpen( string $today ): bool {
+		$deadline = $this->effectiveEnrollmentDeadline();
+
+		return null === $deadline || $today <= $deadline;
+	}
+
+	/**
+	 * Whether a student may still withdraw themselves from this group class on
+	 * `$today` (a `Y-m-d` date). Withdrawal stays open through the end of the
+	 * deadline day. Unlike the enrolment deadline there is no implicit default: a
+	 * class with no withdrawal deadline set stays open to withdrawal for its whole
+	 * life, so the instructor must set a date to lock students in. A withdrawal
+	 * made while open never issues an account credit — it only frees the seat and
+	 * voids any still-pending payment.
+	 */
+	public function isWithdrawalOpen( string $today ): bool {
+		return null === $this->withdrawalDeadline || $today <= $this->withdrawalDeadline;
+	}
+
 	/**
 	 * Normalise a submitted term date to canonical `Y-m-d`, or null when it is
 	 * not a real calendar date. Round-trips through DateTimeImmutable so
@@ -169,6 +236,8 @@ class Offering {
 			termStart:       Val::stringOrNull( $row->term_start ),
 			termEnd:         Val::stringOrNull( $row->term_end ),
 			classTime:       Val::stringOrNull( $row->class_time ?? null ),
+			enrollmentDeadline: Val::stringOrNull( $row->enrollment_deadline ?? null ),
+			withdrawalDeadline: Val::stringOrNull( $row->withdrawal_deadline ?? null ),
 			scheduleNote:    Val::stringOrNull( $row->schedule_note ),
 			etransferEmail:  Val::stringOrNull( $row->etransfer_email ),
 			cancellationCutoffHours: Val::intOrNull( $row->cancellation_cutoff_hours ),
@@ -203,6 +272,8 @@ class Offering {
 			'term_start'                => $this->termStart,
 			'term_end'                  => $this->termEnd,
 			'class_time'                => $this->classTime,
+			'enrollment_deadline'       => $this->enrollmentDeadline,
+			'withdrawal_deadline'       => $this->withdrawalDeadline,
 			'schedule_note'             => $this->scheduleNote,
 			'cancellation_cutoff_hours' => $this->cancellationCutoffHours,
 			'access_mode'               => $this->accessMode,

src/Offering/OfferingController.php

@@ -3,6 +3,7 @@ declare(strict_types=1);
 
 namespace Unsupervised\Schedular\Offering;
 
+use Unsupervised\Schedular\Auth\AccessSettings;
 use Unsupervised\Schedular\Auth\RoleManager;
 use Unsupervised\Schedular\Val;
 
@@ -11,6 +12,7 @@ class OfferingController {
 	public function __construct(
 		private OfferingRepository $repository,
 		private ClassSlotReconciler $reconciler,
+		private AccessSettings $access = new AccessSettings(),
 	) {}
 
 	public function renderPage(): void {
@@ -137,17 +139,28 @@ class OfferingController {
 	}
 
 	/**
-	 * Registered instructors offered in the assignment select, by display name.
+	 * Instructors offered in the assignment select, by display name.
+	 *
+	 * Includes everyone holding the `us_instructor` role plus, when the site owner
+	 * has left administrators acting as instructors (the default single-account
+	 * setup), WordPress administrators — who teach through the dynamic capability
+	 * grant rather than the role. Without them a solo studio owner running the
+	 * business from an admin account would find no one to assign a class to.
 	 *
 	 * @return list<array{id: int, name: string}>
 	 */
 	private function instructorOptions(): array {
+		$roles = [ RoleManager::INSTRUCTOR ];
+		if ( $this->access->adminsAreInstructors() ) {
+			$roles[] = 'administrator';
+		}
+
 		$users = array_filter(
 			get_users(
 				[
-					'role'    => RoleManager::INSTRUCTOR,
-					'orderby' => 'display_name',
-					'order'   => 'ASC',
+					'role__in' => $roles,
+					'orderby'  => 'display_name',
+					'order'    => 'ASC',
 				]
 			),
 			static fn( mixed $u ): bool => $u instanceof \WP_User
@@ -184,6 +197,17 @@ class OfferingController {
 			return null;
 		}
 
+		$scheduleNote   = $this->nullableText( sanitize_text_field( Val::string( wp_unslash( $_POST['schedule_note'] ?? '' ) ) ) );
+		$etransferEmail = $this->nullableText( sanitize_email( Val::string( wp_unslash( $_POST['etransfer_email'] ?? '' ) ) ) );
+
+		// Reject over-long fixed-size fields rather than let the DB silently drop them.
+		if ( mb_strlen( $title ) > Offering::MAX_TITLE_LENGTH
+			|| ( null !== $scheduleNote && mb_strlen( $scheduleNote ) > Offering::MAX_SCHEDULE_NOTE_LENGTH )
+			|| ( null !== $etransferEmail && mb_strlen( $etransferEmail ) > Offering::MAX_ETRANSFER_EMAIL_LENGTH )
+		) {
+			return null;
+		}
+
 		$billingMode = sanitize_key( Val::string( wp_unslash( $_POST['billing_mode'] ?? Offering::BILLING_ONE_TIME ) ) );
 		if ( ! in_array( $billingMode, Offering::VALID_BILLING_MODES, true ) ) {
 			$billingMode = Offering::BILLING_ONE_TIME;
@@ -209,6 +233,15 @@ class OfferingController {
 
 		$classTime = Offering::normalizeTime( sanitize_text_field( Val::string( wp_unslash( $_POST['class_time'] ?? '' ) ) ) );
 
+		// A blank (or invalid) deadline means "use the default" — the first class
+		// day (term_start), applied by Offering::effectiveEnrollmentDeadline().
+		$enrollmentDeadline = Offering::normalizeDate( sanitize_text_field( Val::string( wp_unslash( $_POST['enrollment_deadline'] ?? '' ) ) ) );
+
+		// A blank (or invalid) withdrawal deadline leaves the column NULL, which
+		// keeps self-withdrawal open for the class's whole life
+		// (Offering::isWithdrawalOpen()). A set date closes it after that day.
+		$withdrawalDeadline = Offering::normalizeDate( sanitize_text_field( Val::string( wp_unslash( $_POST['withdrawal_deadline'] ?? '' ) ) ) );
+
 		return new Offering(
 			instructorId:    $this->resolveInstructorId( $instructorId, $manageAll, $existing ),
 			kind:            $kind,
@@ -223,8 +256,10 @@ class OfferingController {
 			termStart:       $termStart,
 			termEnd:         $termEnd,
 			classTime:       $classTime,
-			scheduleNote:    $this->nullableText( sanitize_text_field( Val::string( wp_unslash( $_POST['schedule_note'] ?? '' ) ) ) ),
-			etransferEmail:  $this->nullableText( sanitize_email( Val::string( wp_unslash( $_POST['etransfer_email'] ?? '' ) ) ) ),
+			enrollmentDeadline: $enrollmentDeadline,
+			withdrawalDeadline: $withdrawalDeadline,
+			scheduleNote:    $scheduleNote,
+			etransferEmail:  $etransferEmail,
 			cancellationCutoffHours: $cutoffHours,
 			accessMode:      isset( $_POST['invite_only'] ) ? Offering::ACCESS_INVITE_ONLY : Offering::ACCESS_PUBLIC,
 			isActive:        isset( $_POST['is_active'] ),

src/Offering/OfferingEndpoint.php

@@ -28,7 +28,7 @@ class OfferingEndpoint {
 				[
 					'methods'             => \WP_REST_Server::READABLE,
 					'callback'            => [ $this, 'index' ],
-					'permission_callback' => [ $this, 'canBook' ],
+					'permission_callback' => [ $this, 'canRead' ],
 					'args'                => [
 						'instructor_id' => [
 							'type'    => 'integer',
@@ -148,6 +148,14 @@ class OfferingEndpoint {
 			return $this->invalid( __( 'Invalid billing mode.', 'unsupervised-schedular' ) );
 		}
 
+		$scheduleNote   = $this->nullableText( $request->get_param( 'schedule_note' ) );
+		$etransferEmail = $this->nullableEmail( $request->get_param( 'etransfer_email' ) );
+
+		$lengthError = $this->checkLengths( $title, $scheduleNote, $etransferEmail );
+		if ( $lengthError instanceof \WP_Error ) {
+			return $lengthError;
+		}
+
 		$offering = new Offering(
 			instructorId:    get_current_user_id(),
 			kind:            $kind,
@@ -161,8 +169,9 @@ class OfferingEndpoint {
 			capacity:        $this->nullableInt( $request->get_param( 'capacity' ) ),
 			termStart:       $this->nullableText( $request->get_param( 'term_start' ) ),
 			termEnd:         $this->nullableText( $request->get_param( 'term_end' ) ),
-			scheduleNote:    $this->nullableText( $request->get_param( 'schedule_note' ) ),
-			etransferEmail:  $this->nullableEmail( $request->get_param( 'etransfer_email' ) ),
+			enrollmentDeadline: $this->nullableText( $request->get_param( 'enrollment_deadline' ) ),
+			scheduleNote:    $scheduleNote,
+			etransferEmail:  $etransferEmail,
 			cancellationCutoffHours: $this->nullableInt( $request->get_param( 'cancellation_cutoff_hours' ) ),
 			accessMode:      $this->accessMode( $request->get_param( 'access_mode' ), Offering::ACCESS_PUBLIC ),
 			isActive:        null === $request->get_param( 'is_active' ) ? true : (bool) $request->get_param( 'is_active' ),
@@ -195,10 +204,19 @@ class OfferingEndpoint {
 			return $this->invalid( __( 'Invalid billing mode.', 'unsupervised-schedular' ) );
 		}
 
+		$title          = $request->has_param( 'title' ) ? sanitize_text_field( Val::string( $request->get_param( 'title' ) ) ) : $existing->title;
+		$scheduleNote   = $request->has_param( 'schedule_note' ) ? $this->nullableText( $request->get_param( 'schedule_note' ) ) : $existing->scheduleNote;
+		$etransferEmail = $request->has_param( 'etransfer_email' ) ? $this->nullableEmail( $request->get_param( 'etransfer_email' ) ) : $existing->etransferEmail;
+
+		$lengthError = $this->checkLengths( $title, $scheduleNote, $etransferEmail );
+		if ( $lengthError instanceof \WP_Error ) {
+			return $lengthError;
+		}
+
 		$offering = new Offering(
 			instructorId:    $existing->instructorId,
 			kind:            $kind,
-			title:           $request->has_param( 'title' ) ? sanitize_text_field( Val::string( $request->get_param( 'title' ) ) ) : $existing->title,
+			title:           $title,
 			price:           $request->has_param( 'price' ) ? $this->price( $request->get_param( 'price' ) ) : $existing->price,
 			currency:        $request->has_param( 'currency' ) ? sanitize_text_field( Val::string( $request->get_param( 'currency' ) ) ) : $existing->currency,
 			billingMode:     $billingMode,
@@ -208,8 +226,9 @@ class OfferingEndpoint {
 			capacity:        $request->has_param( 'capacity' ) ? $this->nullableInt( $request->get_param( 'capacity' ) ) : $existing->capacity,
 			termStart:       $request->has_param( 'term_start' ) ? $this->nullableText( $request->get_param( 'term_start' ) ) : $existing->termStart,
 			termEnd:         $request->has_param( 'term_end' ) ? $this->nullableText( $request->get_param( 'term_end' ) ) : $existing->termEnd,
-			scheduleNote:    $request->has_param( 'schedule_note' ) ? $this->nullableText( $request->get_param( 'schedule_note' ) ) : $existing->scheduleNote,
-			etransferEmail:  $request->has_param( 'etransfer_email' ) ? $this->nullableEmail( $request->get_param( 'etransfer_email' ) ) : $existing->etransferEmail,
+			enrollmentDeadline: $request->has_param( 'enrollment_deadline' ) ? $this->nullableText( $request->get_param( 'enrollment_deadline' ) ) : $existing->enrollmentDeadline,
+			scheduleNote:    $scheduleNote,
+			etransferEmail:  $etransferEmail,
 			cancellationCutoffHours: $request->has_param( 'cancellation_cutoff_hours' ) ? $this->nullableInt( $request->get_param( 'cancellation_cutoff_hours' ) ) : $existing->cancellationCutoffHours,
 			accessMode:      $request->has_param( 'access_mode' ) ? $this->accessMode( $request->get_param( 'access_mode' ), $existing->accessMode ) : $existing->accessMode,
 			isActive:        $request->has_param( 'is_active' ) ? (bool) $request->get_param( 'is_active' ) : $existing->isActive,
@@ -243,12 +262,16 @@ class OfferingEndpoint {
 	}
 
 	/**
-	 * Reading the offerings catalogue is only needed by the logged-in student
-	 * booking flow, so it requires the same capability as booking — there is no
-	 * anonymous consumer.
+	 * Reading the offerings catalogue has no anonymous consumer, so it stays
+	 * behind a login. Students reach it through the booking flow, and studio
+	 * admins and instructors reach it from the block editor's group-class
+	 * pickers — an administrator holds `manage_offerings` but not
+	 * `book_lesson`, so both capabilities open the listing.
 	 */
-	public function canBook(): bool {
-		return is_user_logged_in() && current_user_can( RoleManager::CAP_BOOK_LESSON );
+	public function canRead(): bool {
+		return is_user_logged_in()
+			&& ( current_user_can( RoleManager::CAP_BOOK_LESSON )
+				|| current_user_can( RoleManager::CAP_MANAGE_OFFERINGS ) );
 	}
 
 	/**
@@ -264,6 +287,34 @@ class OfferingEndpoint {
 		return new \WP_Error( 'invalid_offering', $message, [ 'status' => 400 ] );
 	}
 
+	/**
+	 * Reject any fixed-size field whose value exceeds its column length, so an
+	 * over-long value is refused with a clear 400 rather than silently dropped
+	 * by the database.
+	 */
+	private function checkLengths( string $title, ?string $scheduleNote, ?string $etransferEmail ): ?\WP_Error {
+		$fields = [
+			[ __( 'title', 'unsupervised-schedular' ), $title, Offering::MAX_TITLE_LENGTH ],
+			[ __( 'schedule note', 'unsupervised-schedular' ), $scheduleNote, Offering::MAX_SCHEDULE_NOTE_LENGTH ],
+			[ __( 'e-transfer email', 'unsupervised-schedular' ), $etransferEmail, Offering::MAX_ETRANSFER_EMAIL_LENGTH ],
+		];
+
+		foreach ( $fields as [ $name, $value, $max ] ) {
+			if ( null !== $value && mb_strlen( $value ) > $max ) {
+				return $this->invalid(
+					sprintf(
+						/* translators: 1: field name, 2: maximum character count. */
+						__( 'The %1$s must be %2$d characters or fewer.', 'unsupervised-schedular' ),
+						$name,
+						$max
+					)
+				);
+			}
+		}
+
+		return null;
+	}
+
 	private function price( mixed $value ): float {
 		return max( 0.0, Val::float( $value ) );
 	}

src/Offering/OfferingRepository.php

@@ -14,12 +14,13 @@ class OfferingRepository {
 	/**
 	 * Column formats aligned to {@see columns()} (instructor_id, kind, title,
 	 * description, duration_minutes, price, currency, billing_mode, allow_weekly,
-	 * capacity, term_start, term_end, class_time, schedule_note, etransfer_email,
+	 * capacity, term_start, term_end, class_time, enrollment_deadline,
+	 * withdrawal_deadline, schedule_note, etransfer_email,
 	 * cancellation_cutoff_hours, access_mode, is_active).
 	 *
 	 * @var list<string>
 	 */
-	private const COLUMN_FORMATS = [ '%d', '%s', '%s', '%s', '%d', '%f', '%s', '%s', '%d', '%d', '%s', '%s', '%s', '%s', '%s', '%d', '%s', '%d' ];
+	private const COLUMN_FORMATS = [ '%d', '%s', '%s', '%s', '%d', '%f', '%s', '%s', '%d', '%d', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d', '%s', '%d' ];
 
 	public function insert( Offering $offering ): int {
 		$this->db->insert(
@@ -61,6 +62,8 @@ class OfferingRepository {
 			'term_start'                => $offering->termStart,
 			'term_end'                  => $offering->termEnd,
 			'class_time'                => $offering->classTime,
+			'enrollment_deadline'       => $offering->enrollmentDeadline,
+			'withdrawal_deadline'       => $offering->withdrawalDeadline,
 			'schedule_note'             => $offering->scheduleNote,
 			'etransfer_email'           => $offering->etransferEmail,
 			'cancellation_cutoff_hours' => $offering->cancellationCutoffHours,

src/Payment/Credit.php

@@ -0,0 +1,79 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Payment;
+
+use Unsupervised\Schedular\Val;
+
+/**
+ * A studio credit held on a student's account — money already paid for a lesson
+ * that was later cancelled. Credits are consumed against future scheduled-billing
+ * charges (weekly / monthly) before the student is asked to pay, oldest first.
+ */
+class Credit {
+
+	public const STATUS_AVAILABLE = 'available';
+	public const STATUS_CONSUMED  = 'consumed';
+
+	/**
+	 * All valid credit statuses.
+	 *
+	 * @var list<string>
+	 */
+	public const VALID_STATUSES = [ self::STATUS_AVAILABLE, self::STATUS_CONSUMED ];
+
+	public function __construct(
+		public readonly int $studentId,
+		public readonly float $amount,
+		public readonly float $remaining,
+		public readonly string $currency = 'CAD',
+		public readonly ?int $sourcePaymentId = null,
+		public readonly ?int $sourceLessonId = null,
+		public readonly ?string $reason = null,
+		public readonly string $status = self::STATUS_AVAILABLE,
+		public readonly ?string $createdAt = null,
+		public readonly ?string $updatedAt = null,
+		public readonly ?int $id = null,
+	) {}
+
+	public static function fromRow( \stdClass $row ): self {
+		return new self(
+			studentId:       Val::int( $row->student_id ),
+			amount:          Val::float( $row->amount ),
+			remaining:       Val::float( $row->remaining ),
+			currency:        Val::string( $row->currency ),
+			sourcePaymentId: Val::intOrNull( $row->source_payment_id ?? null ),
+			sourceLessonId:  Val::intOrNull( $row->source_lesson_id ?? null ),
+			reason:          Val::stringOrNull( $row->reason ?? null ),
+			status:          Val::string( $row->status ),
+			createdAt:       Val::stringOrNull( $row->created_at ?? null ),
+			updatedAt:       Val::stringOrNull( $row->updated_at ?? null ),
+			id:              Val::int( $row->id ),
+		);
+	}
+
+	public function isAvailable(): bool {
+		return self::STATUS_AVAILABLE === $this->status && $this->remaining > 0.0;
+	}
+
+	/**
+	 * Returns a plain array representation of the credit.
+	 *
+	 * @return array<string, mixed>
+	 */
+	public function toArray(): array {
+		return [
+			'id'                => $this->id,
+			'student_id'        => $this->studentId,
+			'amount'            => $this->amount,
+			'remaining'         => $this->remaining,
+			'currency'          => $this->currency,
+			'source_payment_id' => $this->sourcePaymentId,
+			'source_lesson_id'  => $this->sourceLessonId,
+			'reason'            => $this->reason,
+			'status'            => $this->status,
+			'created_at'        => $this->createdAt,
+			'updated_at'        => $this->updatedAt,
+		];
+	}
+}

src/Payment/CreditRepository.php

@@ -0,0 +1,149 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Payment;
+
+class CreditRepository {
+
+	private string $table;
+
+	public function __construct( private \wpdb $db ) {
+		$this->table = $db->prefix . 'us_credits';
+	}
+
+	public function insert( Credit $credit ): int {
+		$this->db->insert(
+			$this->table,
+			[
+				'student_id'        => $credit->studentId,
+				'amount'            => $credit->amount,
+				'remaining'         => $credit->remaining,
+				'currency'          => $credit->currency,
+				'source_payment_id' => $credit->sourcePaymentId,
+				'source_lesson_id'  => $credit->sourceLessonId,
+				'reason'            => $credit->reason,
+				'status'            => $credit->status,
+				'created_at'        => current_time( 'mysql' ),
+			],
+			[ '%d', '%f', '%f', '%s', '%d', '%d', '%s', '%s', '%s' ]
+		);
+
+		return $this->db->insert_id;
+	}
+
+	public function findById( int $id ): ?Credit {
+		$row = $this->db->get_row(
+			$this->db->prepare( 'SELECT * FROM %i WHERE id = %d', $this->table, $id )
+		);
+
+		return $row ? Credit::fromRow( $row ) : null;
+	}
+
+	/**
+	 * Whether a credit has already been issued for a cancelled lesson, so cancelling
+	 * (or re-cancelling) the same lesson never grants a second credit.
+	 */
+	public function existsForLesson( int $lessonId ): bool {
+		$found = $this->db->get_var(
+			$this->db->prepare(
+				'SELECT id FROM %i WHERE source_lesson_id = %d LIMIT 1',
+				$this->table,
+				$lessonId
+			)
+		);
+
+		return null !== $found;
+	}
+
+	/**
+	 * A student's total unused credit balance (sum of the remaining amounts of every
+	 * still-available credit).
+	 */
+	public function availableBalance( int $studentId ): float {
+		$total = $this->db->get_var(
+			$this->db->prepare(
+				'SELECT COALESCE( SUM( remaining ), 0 ) FROM %i WHERE student_id = %d AND status = %s',
+				$this->table,
+				$studentId,
+				Credit::STATUS_AVAILABLE
+			)
+		);
+
+		return round( (float) $total, 2 );
+	}
+
+	/**
+	 * A student's still-available credits, oldest first — the FIFO order they are
+	 * consumed in.
+	 *
+	 * @return list<Credit>
+	 */
+	public function findAvailableByStudent( int $studentId ): array {
+		$rows = $this->db->get_results(
+			$this->db->prepare(
+				'SELECT * FROM %i WHERE student_id = %d AND status = %s AND remaining > 0 ORDER BY created_at ASC, id ASC',
+				$this->table,
+				$studentId,
+				Credit::STATUS_AVAILABLE
+			)
+		);
+
+		return array_map( Credit::fromRow( ... ), $rows ?? [] );
+	}
+
+	/**
+	 * Every credit for a student, newest first (admin history).
+	 *
+	 * @return list<Credit>
+	 */
+	public function findByStudent( int $studentId ): array {
+		$rows = $this->db->get_results(
+			$this->db->prepare(
+				'SELECT * FROM %i WHERE student_id = %d ORDER BY created_at DESC, id DESC',
+				$this->table,
+				$studentId
+			)
+		);
+
+		return array_map( Credit::fromRow( ... ), $rows ?? [] );
+	}
+
+	/**
+	 * Draw down a student's credit balance by $amount, consuming their available
+	 * credits oldest first and marking each fully-spent credit `consumed`. Stops once
+	 * the amount is exhausted; a balance shorter than $amount simply drains to zero.
+	 */
+	public function consume( int $studentId, float $amount ): void {
+		$remaining = round( $amount, 2 );
+		if ( $remaining <= 0.0 ) {
+			return;
+		}
+
+		foreach ( $this->findAvailableByStudent( $studentId ) as $credit ) {
+			if ( $remaining <= 0.0 ) {
+				break;
+			}
+			if ( null === $credit->id ) {
+				continue;
+			}
+
+			$take         = min( $credit->remaining, $remaining );
+			$newRemaining = round( $credit->remaining - $take, 2 );
+			$status       = $newRemaining <= 0.0 ? Credit::STATUS_CONSUMED : Credit::STATUS_AVAILABLE;
+
+			$this->db->update(
+				$this->table,
+				[
+					'remaining'  => $newRemaining,
+					'status'     => $status,
+					'updated_at' => current_time( 'mysql' ),
+				],
+				[ 'id' => $credit->id ],
+				[ '%f', '%s', '%s' ],
+				[ '%d' ]
+			);
+
+			$remaining = round( $remaining - $take, 2 );
+		}
+	}
+}

src/Payment/Payment.php

@@ -44,6 +44,10 @@ class Payment {
 		public readonly string $status = self::STATUS_PENDING,
 		public readonly float $taxRate = 0.0,
 		public readonly float $taxAmount = 0.0,
+		public readonly float $creditApplied = 0.0,
+		public readonly ?string $dueDate = null,
+		public readonly ?string $periodKey = null,
+		public readonly ?string $noticeBatch = null,
 		public readonly ?string $etransferEmail = null,
 		public readonly ?string $stripePaymentIntentId = null,
 		public readonly ?string $receiptNumber = null,
@@ -65,6 +69,10 @@ class Payment {
 			status:                Val::string( $row->status ),
 			taxRate:               Val::float( $row->tax_rate ),
 			taxAmount:             Val::float( $row->tax_amount ),
+			creditApplied:         Val::float( $row->credit_applied ?? 0 ),
+			dueDate:               Val::stringOrNull( $row->due_date ?? null ),
+			periodKey:             Val::stringOrNull( $row->period_key ?? null ),
+			noticeBatch:           Val::stringOrNull( $row->notice_batch ?? null ),
 			etransferEmail:        Val::stringOrNull( $row->etransfer_email ),
 			stripePaymentIntentId: Val::stringOrNull( $row->stripe_payment_intent_id ),
 			receiptNumber:         Val::stringOrNull( $row->receipt_number ),
@@ -79,6 +87,15 @@ class Payment {
 		return self::STATUS_PAID === $this->status;
 	}
 
+	/**
+	 * Whether this payment was generated by the daily billing scan (weekly /
+	 * monthly) rather than taken at registration. Scheduled payments carry a due
+	 * date, can cover several lessons, and are never auto-voided on cancellation.
+	 */
+	public function isScheduled(): bool {
+		return null !== $this->dueDate;
+	}
+
 	/**
 	 * Amount billed including tax.
 	 */
@@ -86,6 +103,14 @@ class Payment {
 		return round( $this->amount + $this->taxAmount, 2 );
 	}
 
+	/**
+	 * What the student still owes after any account credit applied to this payment.
+	 * The full `total()` less `creditApplied`, floored at zero.
+	 */
+	public function netDue(): float {
+		return round( max( 0.0, $this->total() - $this->creditApplied ), 2 );
+	}
+
 	/**
 	 * Minimal payment info embedded in registration-creation responses: enough
 	 * for the front end to decide whether (and how) to run the payment step.
@@ -117,9 +142,14 @@ class Payment {
 			'tax_rate'          => $this->taxRate,
 			'tax_amount'        => $this->taxAmount,
 			'total'             => $this->total(),
+			'credit_applied'    => $this->creditApplied,
+			'net_due'           => $this->netDue(),
 			'currency'          => $this->currency,
 			'method'            => $this->method,
 			'status'            => $this->status,
+			'due_date'          => $this->dueDate,
+			'period_key'        => $this->periodKey,
+			'notice_batch'      => $this->noticeBatch,
 			'receipt_number'    => $this->receiptNumber,
 			'paid_at'           => $this->paidAt,
 			'created_at'        => $this->createdAt,

src/Payment/PaymentController.php

@@ -33,22 +33,61 @@ class PaymentController {
 			}
 		}
 
-		$rows = array_map(
-			static function ( Payment $payment ): array {
-				$student = get_userdata( $payment->studentId );
-
-				return [
-					'id'              => (int) $payment->id,
-					'student'         => $student ? $student->display_name : (string) $payment->studentId,
-					'amount'          => number_format( $payment->amount, 2 ) . ' ' . $payment->currency,
-					'method'          => $payment->method,
-					'for'             => $payment->registrationType . ' #' . $payment->registrationId,
-					'etransfer_email' => (string) $payment->etransferEmail,
-				];
-			},
-			$this->payments->findPending()
-		);
+		$groups = $this->groupPending( $this->payments->findPending() );
 
 		include USC_PLUGIN_DIR . 'templates/admin/payments.php';
 	}
+
+	/**
+	 * Group pending payments by their shared notice batch, so payments the daily
+	 * scan emailed a student together (and which a single lump-sum e-transfer
+	 * covers) are shown as one group with a combined total. Payments with no batch
+	 * — legacy at-registration e-transfers — are each their own single-item group.
+	 *
+	 * @param list<Payment> $pending
+	 * @return list<array{reference: string, is_group: bool, total: string, rows: list<array{id: int, student: string, amount: string, method: string, for: string, etransfer_email: string}>}>
+	 */
+	private function groupPending( array $pending ): array {
+		$groups = [];
+
+		foreach ( $pending as $payment ) {
+			$batch = (string) $payment->noticeBatch;
+			$key   = '' !== $batch ? 'b:' . $batch : 's:' . (string) $payment->id;
+
+			if ( ! isset( $groups[ $key ] ) ) {
+				$groups[ $key ] = [
+					'reference' => $batch,
+					'currency'  => $payment->currency,
+					'total_raw' => 0.0,
+					'rows'      => [],
+				];
+			}
+
+			$student = get_userdata( $payment->studentId );
+
+			// Show what the student still owes — the amount less any account credit
+			// already applied to this payment.
+			$groups[ $key ]['total_raw'] += $payment->netDue();
+			$groups[ $key ]['rows'][]     = [
+				'id'              => (int) $payment->id,
+				'student'         => $student ? $student->display_name : (string) $payment->studentId,
+				'amount'          => number_format( $payment->netDue(), 2 ) . ' ' . $payment->currency,
+				'method'          => $payment->method,
+				'for'             => $payment->registrationType . ' #' . $payment->registrationId,
+				'etransfer_email' => (string) $payment->etransferEmail,
+			];
+		}
+
+		return array_values(
+			array_map(
+				static fn( array $group ): array => [
+					'reference' => $group['reference'],
+					'is_group'  => count( $group['rows'] ) > 1,
+					'total'     => number_format( $group['total_raw'], 2 ) . ' ' . $group['currency'],
+					'rows'      => $group['rows'],
+				],
+				$groups
+			)
+		);
+	}
 }

src/Payment/PaymentDueMailer.php

@@ -0,0 +1,107 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Payment;
+
+/**
+ * Emails a student a single itemised notice for every payment the daily billing
+ * scan generated for them in one run, so a student billed for several lessons on
+ * the same day receives one email with a line per item and a grand total — never
+ * one email per lesson.
+ */
+class PaymentDueMailer {
+
+	/**
+	 * Send one student their consolidated due-payment notice for the current scan.
+	 * The optional `$reference` is the shared notice-batch code the student can quote
+	 * on a lump-sum e-transfer so the studio can reconcile it to these payments.
+	 *
+	 * @param list<array{label: string, amount: float, currency: string, due_date: ?string, etransfer_email: ?string}> $items
+	 * @param float                                                                                                    $creditApplied Account credit deducted from the total this notice covers.
+	 * @return bool False when there is no recipient or nothing to bill.
+	 */
+	public function send( \WP_User $student, array $items, string $reference = '', float $creditApplied = 0.0 ): bool {
+		if ( '' === (string) $student->user_email || [] === $items ) {
+			return false;
+		}
+
+		$currency = (string) $items[0]['currency'];
+		$total    = 0.0;
+		$lines    = [];
+		$emails   = [];
+
+		foreach ( $items as $item ) {
+			$amount = (float) $item['amount'];
+			$total += $amount;
+
+			$lines[] = sprintf(
+				/* translators: 1: item description, 2: due date, 3: currency, 4: amount */
+				__( '- %1$s (due %2$s): %3$s %4$s', 'unsupervised-schedular' ),
+				(string) $item['label'],
+				$this->formatDate( $item['due_date'] ?? null ),
+				$currency,
+				number_format( $amount, 2 )
+			);
+
+			$etransfer = (string) ( $item['etransfer_email'] ?? '' );
+			if ( '' !== $etransfer ) {
+				$emails[ $etransfer ] = true;
+			}
+		}
+
+		// Account credit (from an earlier cancelled paid lesson) offsets the total.
+		$creditApplied = round( min( $creditApplied, $total ), 2 );
+		$dueTotal      = round( $total - $creditApplied, 2 );
+
+		$body = __( 'You have upcoming payments due:', 'unsupervised-schedular' ) . "\n\n"
+			. implode( "\n", $lines );
+
+		if ( $creditApplied > 0.0 ) {
+			$body .= "\n\n" . sprintf(
+				/* translators: 1: currency, 2: credit amount */
+				__( 'Account credit applied: -%1$s %2$s', 'unsupervised-schedular' ),
+				$currency,
+				number_format( $creditApplied, 2 )
+			);
+		}
+
+		$body .= "\n\n" . sprintf(
+			/* translators: 1: currency, 2: total amount */
+			__( 'Total due: %1$s %2$s', 'unsupervised-schedular' ),
+			$currency,
+			number_format( $dueTotal, 2 )
+		);
+
+		if ( $dueTotal > 0.0 && [] !== $emails ) {
+			$body .= "\n\n" . sprintf(
+				/* translators: %s: e-transfer destination email address(es) */
+				__( 'Please send your e-transfer to: %s', 'unsupervised-schedular' ),
+				implode( ', ', array_keys( $emails ) )
+			);
+		}
+
+		if ( '' !== $reference ) {
+			$body .= "\n\n" . sprintf(
+				/* translators: %s: payment reference code */
+				__( 'Please include this reference with your payment: %s', 'unsupervised-schedular' ),
+				$reference
+			);
+		}
+
+		return (bool) wp_mail( $student->user_email, __( 'Payment due', 'unsupervised-schedular' ), $body );
+	}
+
+	/**
+	 * Present a stored `Y-m-d` due date in a friendlier form; falls back to the
+	 * raw value (or an empty string) when it is not a parseable date.
+	 */
+	private function formatDate( ?string $date ): string {
+		if ( null === $date || '' === $date ) {
+			return '';
+		}
+
+		$parsed = \DateTimeImmutable::createFromFormat( '!Y-m-d', $date );
+
+		return false !== $parsed ? $parsed->format( 'M j, Y' ) : $date;
+	}
+}

src/Payment/PaymentRepository.php

@@ -25,6 +25,10 @@ class PaymentRepository {
 				'status'                   => $payment->status,
 				'tax_rate'                 => $payment->taxRate,
 				'tax_amount'               => $payment->taxAmount,
+				'credit_applied'           => $payment->creditApplied,
+				'due_date'                 => $payment->dueDate,
+				'period_key'               => $payment->periodKey,
+				'notice_batch'             => $payment->noticeBatch,
 				'etransfer_email'          => $payment->etransferEmail,
 				'stripe_payment_intent_id' => $payment->stripePaymentIntentId,
 				'receipt_number'           => $payment->receiptNumber,
@@ -32,7 +36,7 @@ class PaymentRepository {
 				'paid_at'                  => $payment->paidAt,
 				'created_at'               => current_time( 'mysql' ),
 			],
-			[ '%d', '%d', '%s', '%d', '%f', '%s', '%s', '%s', '%f', '%f', '%s', '%s', '%s', '%s', '%s', '%s' ]
+			[ '%d', '%d', '%s', '%d', '%f', '%s', '%s', '%s', '%f', '%f', '%f', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' ]
 		);
 
 		return $this->db->insert_id;
@@ -74,6 +78,22 @@ class PaymentRepository {
 		);
 	}
 
+	/**
+	 * Add to the account credit applied against a payment, reducing what the student
+	 * still owes on it (`Payment::netDue()`). Accumulates, so a second application
+	 * adds to the first.
+	 */
+	public function addCreditApplied( int $id, float $amount ): bool {
+		$sql = $this->db->prepare(
+			'UPDATE %i SET credit_applied = credit_applied + %f WHERE id = %d',
+			$this->table,
+			$amount,
+			$id
+		);
+
+		return null !== $sql && false !== $this->db->query( $sql );
+	}
+
 	/**
 	 * Set a payment's tax rate and recompute the tax amount from its subtotal.
 	 */
@@ -119,6 +139,51 @@ class PaymentRepository {
 		return $row ? Payment::fromRow( $row ) : null;
 	}
 
+	/**
+	 * Tag a set of payments with a shared notice-batch reference — the payments the
+	 * daily scan emailed a student together, so the admin can see which pending
+	 * payments a single lump-sum e-transfer covers. No-op for an empty id list.
+	 *
+	 * @param list<int> $ids
+	 */
+	public function assignNoticeBatch( array $ids, string $batch ): void {
+		if ( [] === $ids ) {
+			return;
+		}
+
+		$placeholders = implode( ', ', array_fill( 0, count( $ids ), '%d' ) );
+		$sql          = $this->db->prepare(
+			"UPDATE %i SET notice_batch = %s WHERE id IN ( {$placeholders} )",
+			$this->table,
+			$batch,
+			...$ids
+		);
+
+		if ( null !== $sql ) {
+			$this->db->query( $sql );
+		}
+	}
+
+	/**
+	 * Whether a scheduled payment already exists for a registration and billing
+	 * period. The daily billing scan uses this to avoid double-billing an
+	 * enrolment for the same session (weekly) or month (monthly). A voided
+	 * (`failed`) row still counts so a cancelled charge is not silently re-created.
+	 */
+	public function existsForPeriod( string $registrationType, int $registrationId, string $periodKey ): bool {
+		$found = $this->db->get_var(
+			$this->db->prepare(
+				'SELECT id FROM %i WHERE registration_type = %s AND registration_id = %d AND period_key = %s LIMIT 1',
+				$this->table,
+				$registrationType,
+				$registrationId,
+				$periodKey
+			)
+		);
+
+		return null !== $found;
+	}
+
 	public function findByRegistration( string $registrationType, int $registrationId ): ?Payment {
 		$row = $this->db->get_row(
 			$this->db->prepare(

src/Payment/PaymentService.php

@@ -21,6 +21,7 @@ class PaymentService {
 		private EnrollmentRepository $enrollments,
 		private StudioSettings $settings,
 		private StripeGateway $stripe,
+		private CreditRepository $credits,
 	) {}
 
 	/**
@@ -29,8 +30,12 @@ class PaymentService {
 	 * (card via Stripe — coming soon; e-transfer confirmed manually). The
 	 * e-transfer destination is frozen now from the offering override or the studio
 	 * default. Returns null when the registration has no price to charge.
+	 *
+	 * A `$dueDate`/`$periodKey` mark a payment generated later by the daily billing
+	 * scan (weekly / monthly) rather than taken at registration; both stay null for
+	 * the pay-now flow.
 	 */
-	public function createForRegistration( string $type, int $registrationId, int $studentId, int $instructorId, float $amount, string $currency, ?string $offeringEtransferEmail = null ): ?Payment {
+	public function createForRegistration( string $type, int $registrationId, int $studentId, int $instructorId, float $amount, string $currency, ?string $offeringEtransferEmail = null, ?string $dueDate = null, ?string $periodKey = null ): ?Payment {
 		if ( $amount <= 0.0 ) {
 			return null;
 		}
@@ -58,6 +63,8 @@ class PaymentService {
 				status:           $status,
 				taxRate:          $taxRate,
 				taxAmount:        $taxAmount,
+				dueDate:          $dueDate,
+				periodKey:        $periodKey,
 				etransferEmail:   $etransferEmail,
 			)
 		);
@@ -71,6 +78,26 @@ class PaymentService {
 		return $this->payments->findById( $id );
 	}
 
+	/**
+	 * Whether a scheduled payment already exists for a registration and billing
+	 * period — the daily billing scan's dedup check for group enrolments (whose one
+	 * row maps to many periodic charges). Delegates to the ledger.
+	 */
+	public function scheduledPaymentExists( string $type, int $registrationId, string $periodKey ): bool {
+		return $this->payments->existsForPeriod( $type, $registrationId, $periodKey );
+	}
+
+	/**
+	 * Tag the payments the daily scan emailed a student together with a shared
+	 * notice-batch reference, so a lump-sum e-transfer can be reconciled to the
+	 * pending payments it covers. Delegates to the ledger.
+	 *
+	 * @param list<int> $ids
+	 */
+	public function assignNoticeBatch( array $ids, string $batch ): void {
+		$this->payments->assignNoticeBatch( $ids, $batch );
+	}
+
 	/**
 	 * Studio-admin confirmation that a pending payment (e-transfer) was received.
 	 * Marks it paid, confirms the registration, and emails the receipt.
@@ -92,7 +119,10 @@ class PaymentService {
 	/**
 	 * Void the still-pending payment of a cancelled registration so it drops
 	 * out of the confirmation queue. Paid payments are left alone — refunds
-	 * are a manual, admin-side decision.
+	 * are a manual, admin-side decision. Scheduled payments (weekly / monthly)
+	 * are also left alone: a monthly charge can cover several lessons and may
+	 * already be collected, so cancelling one lesson must never void it or
+	 * trigger a rebill.
 	 */
 	public function voidPending( ?int $paymentId ): void {
 		if ( null === $paymentId ) {
@@ -100,11 +130,140 @@ class PaymentService {
 		}
 
 		$payment = $this->payments->findById( $paymentId );
-		if ( null !== $payment && Payment::STATUS_PENDING === $payment->status ) {
+		if ( null !== $payment && ! $payment->isScheduled() && Payment::STATUS_PENDING === $payment->status ) {
 			$this->payments->updateStatus( $paymentId, Payment::STATUS_FAILED );
 		}
 	}
 
+	/**
+	 * Credit a student for a cancelled lesson they had already paid for. The credit
+	 * is one lesson's share of the covering payment's total (including tax) — the
+	 * whole total for a single-lesson payment, or `total ÷ lessons covered` for a
+	 * payment that spans several (a monthly scheduled charge, or a weekly series paid
+	 * upfront). The original payment is left untouched; the credit is applied to the
+	 * student's future scheduled-billing charges. Returns null when the lesson was
+	 * never paid, has no covering payment, or was already credited.
+	 */
+	public function creditForCancelledLesson( Lesson $lesson ): ?Credit {
+		if ( null === $lesson->id ) {
+			return null;
+		}
+
+		$paymentId = $lesson->paymentId;
+		if ( null === $paymentId && null !== $lesson->seriesId ) {
+			// Series lessons other than the anchor carry no payment_id of their own;
+			// the whole reservation is paid through the anchor's payment.
+			$anchor    = $this->payments->findByRegistration( Payment::REG_LESSON, $lesson->seriesId );
+			$paymentId = $anchor?->id;
+		}
+		if ( null === $paymentId ) {
+			return null;
+		}
+
+		$payment = $this->payments->findById( $paymentId );
+		if ( null === $payment || ! $payment->isPaid() ) {
+			return null;
+		}
+
+		if ( $this->credits->existsForLesson( $lesson->id ) ) {
+			return null;
+		}
+
+		$share = round( $payment->total() / $this->coveredLessonCount( $lesson, $payment ), 2 );
+		if ( $share <= 0.0 ) {
+			return null;
+		}
+
+		$id = $this->credits->insert(
+			new Credit(
+				studentId:       $payment->studentId,
+				amount:          $share,
+				remaining:       $share,
+				currency:        $payment->currency,
+				sourcePaymentId: $payment->id,
+				sourceLessonId:  $lesson->id,
+				reason:          sprintf(
+					/* translators: %d: cancelled lesson id */
+					__( 'Credit for cancelled lesson #%d', 'unsupervised-schedular' ),
+					$lesson->id
+				),
+			)
+		);
+
+		return $this->credits->findById( $id );
+	}
+
+	/**
+	 * How many lessons the covering payment was billed for, so its total can be split
+	 * into a per-lesson credit. A weekly series paid upfront (unscheduled) covers the
+	 * whole series; every other case — a single booking, a weekly scheduled lesson
+	 * (one payment each), or a monthly scheduled charge (payment linked to each
+	 * lesson) — is answered by how many lessons point at the payment. Never below one.
+	 */
+	private function coveredLessonCount( Lesson $lesson, Payment $payment ): int {
+		if ( ! $payment->isScheduled() && null !== $lesson->seriesId ) {
+			return max( 1, $this->bookings->countBySeries( $lesson->seriesId ) );
+		}
+
+		return max( 1, $this->bookings->countByPaymentId( (int) $payment->id ) );
+	}
+
+	/**
+	 * Apply a student's available credit balance against a set of freshly-created
+	 * pending payments (the ones a billing scan just generated for them), oldest
+	 * charge first. Each payment's `credit_applied` is raised by the amount covered;
+	 * a payment fully covered is marked paid-by-credit and its registration confirmed
+	 * so it leaves the confirmation queue. The credit ledger is drawn down by the
+	 * total applied. Returns a map of payment id to the credit applied to it, so the
+	 * caller can reflect the reduction on the student's notice.
+	 *
+	 * @param list<Payment> $payments
+	 * @return array<int, float>
+	 */
+	public function applyCredits( int $studentId, array $payments ): array {
+		$balance = $this->credits->availableBalance( $studentId );
+		if ( $balance <= 0.0 ) {
+			return [];
+		}
+
+		$applied  = [];
+		$consumed = 0.0;
+
+		foreach ( $payments as $payment ) {
+			if ( null === $payment->id || $balance <= 0.0 ) {
+				continue;
+			}
+
+			$owing = $payment->netDue();
+			if ( $owing <= 0.0 ) {
+				continue;
+			}
+
+			$amount = round( min( $balance, $owing ), 2 );
+			if ( $amount <= 0.0 ) {
+				continue;
+			}
+
+			$this->payments->addCreditApplied( $payment->id, $amount );
+
+			// Fully covered by credit: settle it so it drops out of the pending queue.
+			if ( $amount >= $owing ) {
+				$this->payments->markPaid( $payment->id, 'USC-' . $payment->id );
+				$this->confirmRegistration( $payment->registrationType, $payment->registrationId );
+			}
+
+			$applied[ $payment->id ] = $amount;
+			$balance                 = round( $balance - $amount, 2 );
+			$consumed                = round( $consumed + $amount, 2 );
+		}
+
+		if ( $consumed > 0.0 ) {
+			$this->credits->consume( $studentId, $consumed );
+		}
+
+		return $applied;
+	}
+
 	/**
 	 * Resolve the client-side payment step for a freshly created registration.
 	 * For a card payment a Stripe PaymentIntent is created (or replayed

src/Payment/ScheduledBillingRunner.php

@@ -0,0 +1,389 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Payment;
+
+use Unsupervised\Schedular\Booking\BookingRepository;
+use Unsupervised\Schedular\GroupClass\Enrollment;
+use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
+use Unsupervised\Schedular\Offering\Offering;
+use Unsupervised\Schedular\Offering\OfferingRepository;
+use Unsupervised\Schedular\Val;
+
+/**
+ * Generates the pending payments that scheduled-billing offerings (weekly /
+ * monthly) owe as they come due, then emails each student one itemised notice.
+ *
+ * Runs from the daily WP-Cron action `us_generate_due_payments`. It is
+ * self-healing: every run re-scans from the current ledger state, so a missed
+ * day is simply picked up the next time. Dedup keeps a second run from
+ * double-billing — private lessons via `us_lessons.payment_id`, group enrolments
+ * via `us_payments.period_key`.
+ */
+class ScheduledBillingRunner {
+
+	public const HOOK = 'us_generate_due_payments';
+
+	public function __construct(
+		private PaymentService $payments,
+		private BookingRepository $bookings,
+		private EnrollmentRepository $enrollments,
+		private OfferingRepository $offerings,
+		private PaymentDueMailer $mailer,
+	) {}
+
+	public function register(): void {
+		add_action( self::HOOK, [ $this, 'run' ] );
+	}
+
+	/**
+	 * Generate every payment now due and send the consolidated notices.
+	 */
+	public function run(): void {
+		$now = $this->now();
+
+		// One notice bucket per student, filled as pending payments are created and
+		// flushed to a single email at the end, so a student billed for several
+		// lessons on one day is emailed once — never once per lesson. Each entry keeps
+		// the created payment and its label; credits are applied across the whole
+		// bucket before the notice is built, so a student's account credit offsets the
+		// run's charges oldest-first.
+		$buckets = [];
+
+		$this->billPrivateLessons( $now, $buckets );
+		$this->billGroupEnrollments( $now, $buckets );
+
+		$this->sendNotices( $buckets );
+	}
+
+	/**
+	 * Private-lesson billing. Weekly lessons are billed one payment each once they
+	 * are within 24 hours; monthly lessons are grouped per calendar month and billed
+	 * one payment for the month once its 1st has arrived.
+	 *
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function billPrivateLessons( \DateTimeImmutable $now, array &$buckets ): void {
+		$today   = $now->format( 'Y-m-d' );
+		$monthly = [];
+
+		foreach ( $this->bookings->findUnbilledScheduledLessons() as $row ) {
+			$price = Val::float( $row->price ?? 0 );
+			if ( $price <= 0.0 ) {
+				continue;
+			}
+
+			$startRaw = Val::string( $row->start_dt ?? '' );
+			$start    = false !== strtotime( $startRaw ) ? new \DateTimeImmutable( $startRaw ) : null;
+			if ( null === $start ) {
+				continue;
+			}
+
+			$lessonId     = Val::int( $row->id );
+			$studentId    = Val::int( $row->student_id );
+			$instructorId = Val::int( $row->instructor_id );
+			$currency     = Val::string( $row->currency ?? 'CAD' );
+			$etransfer    = Val::stringOrNull( $row->etransfer_email ?? null );
+			$title        = Val::string( $row->title ?? '' );
+
+			if ( Offering::BILLING_MONTHLY === Val::string( $row->billing_mode ?? '' ) ) {
+				$monthly[ $studentId . ':' . Val::int( $row->offering_id ) . ':' . $start->format( 'Y-m' ) ][] = [
+					'lesson_id'     => $lessonId,
+					'student_id'    => $studentId,
+					'instructor_id' => $instructorId,
+					'currency'      => $currency,
+					'etransfer'     => $etransfer,
+					'title'         => $title,
+					'price'         => $price,
+					'start'         => $start,
+				];
+				continue;
+			}
+
+			// Weekly: due 24 hours before the lesson.
+			$due = $start->modify( '-1 day' );
+			if ( $due->format( 'Y-m-d H:i:s' ) > $now->format( 'Y-m-d H:i:s' ) ) {
+				continue;
+			}
+
+			$this->bill(
+				$buckets,
+				Payment::REG_LESSON,
+				$lessonId,
+				$studentId,
+				$instructorId,
+				$price,
+				$currency,
+				$etransfer,
+				$due->format( 'Y-m-d' ),
+				$start->format( 'Y-m-d' ),
+				$title . ' — ' . $start->format( 'M j, Y' )
+			);
+		}
+
+		$this->billMonthlyLessonGroups( $today, $monthly, $buckets );
+	}
+
+	/**
+	 * Bill each month's worth of monthly private lessons as one payment (count ×
+	 * fee), once the month's 1st has arrived. The payment links to the earliest
+	 * lesson in the group; the rest are pointed at it so they are not re-billed.
+	 *
+	 * @param array<string, list<array{lesson_id: int, student_id: int, instructor_id: int, currency: string, etransfer: ?string, title: string, price: float, start: \DateTimeImmutable}>> $monthly
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function billMonthlyLessonGroups( string $today, array $monthly, array &$buckets ): void {
+		foreach ( $monthly as $group ) {
+			$first      = $group[0]['start'];
+			$monthStart = $first->format( 'Y-m-01' );
+
+			// Not billable until the 1st of the lesson's month has arrived.
+			if ( $monthStart > $today ) {
+				continue;
+			}
+
+			$lessonIds = array_map( static fn( array $l ): int => $l['lesson_id'], $group );
+			$anchorId  = $lessonIds[0];
+			$count     = count( $group );
+
+			$payment = $this->bill(
+				$buckets,
+				Payment::REG_LESSON,
+				$anchorId,
+				$group[0]['student_id'],
+				$group[0]['instructor_id'],
+				$group[0]['price'] * $count,
+				$group[0]['currency'],
+				$group[0]['etransfer'],
+				$monthStart,
+				$first->format( 'Y-m' ),
+				sprintf(
+					/* translators: 1: offering title, 2: month, 3: number of lessons */
+					_n( '%1$s (%2$s): %3$d lesson', '%1$s (%2$s): %3$d lessons', $count, 'unsupervised-schedular' ),
+					$group[0]['title'],
+					$first->format( 'F Y' ),
+					$count
+				)
+			);
+
+			if ( null === $payment ) {
+				continue;
+			}
+
+			// createForRegistration links the anchor; point the rest of the month at
+			// the same payment so the next scan sees them as billed.
+			foreach ( array_slice( $lessonIds, 1 ) as $extraId ) {
+				$this->bookings->setPaymentId( $extraId, (int) $payment->id );
+			}
+		}
+	}
+
+	/**
+	 * Group-class billing off each active enrolment's concrete session windows.
+	 * Weekly bills one payment per session (24h before); monthly bills one payment
+	 * per month (on the 1st) for that month's sessions. Dedup is by `period_key`
+	 * since a single enrolment maps to many periodic charges.
+	 *
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function billGroupEnrollments( \DateTimeImmutable $now, array &$buckets ): void {
+		$today     = $now->format( 'Y-m-d' );
+		$offerings = [];
+
+		foreach ( $this->enrollments->findActiveByBillingModes( Offering::SCHEDULED_BILLING_MODES ) as $enrollment ) {
+			$offeringId = $enrollment->offeringId;
+			if ( ! array_key_exists( $offeringId, $offerings ) ) {
+				$offerings[ $offeringId ] = $this->offerings->findById( $offeringId );
+			}
+			$offering = $offerings[ $offeringId ];
+			if ( null === $offering || $offering->price <= 0.0 ) {
+				continue;
+			}
+
+			$windows = $offering->sessionWindows();
+			if ( [] === $windows ) {
+				continue;
+			}
+
+			if ( Offering::BILLING_MONTHLY === $offering->billingMode ) {
+				$this->billGroupMonthly( $now, $today, $enrollment, $offering, $windows, $buckets );
+			} else {
+				$this->billGroupWeekly( $now, $enrollment, $offering, $windows, $buckets );
+			}
+		}
+	}
+
+	/**
+	 * Bill one payment per group-class session that is now within 24 hours.
+	 *
+	 * @param list<array{start: string, end: string}> $windows
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function billGroupWeekly( \DateTimeImmutable $now, Enrollment $enrollment, Offering $offering, array $windows, array &$buckets ): void {
+		foreach ( $windows as $window ) {
+			$start = new \DateTimeImmutable( $window['start'] );
+			$due   = $start->modify( '-1 day' );
+			if ( $due->format( 'Y-m-d H:i:s' ) > $now->format( 'Y-m-d H:i:s' ) ) {
+				continue;
+			}
+
+			$periodKey = $start->format( 'Y-m-d' );
+			if ( $this->payments->scheduledPaymentExists( Payment::REG_ENROLLMENT, (int) $enrollment->id, $periodKey ) ) {
+				continue;
+			}
+
+			$this->bill(
+				$buckets,
+				Payment::REG_ENROLLMENT,
+				(int) $enrollment->id,
+				$enrollment->studentId,
+				$enrollment->instructorId,
+				$offering->price,
+				$offering->currency,
+				$offering->etransferEmail,
+				$due->format( 'Y-m-d' ),
+				$periodKey,
+				$offering->title . ' — ' . $start->format( 'M j, Y' )
+			);
+		}
+	}
+
+	/**
+	 * Bill one payment per calendar month of a group class, once its 1st arrives.
+	 *
+	 * A monthly group class is priced **per month**, not per session: the fee is
+	 * charged once for the month however many times the class meets in it. This is
+	 * what the student is quoted and agrees to on the way in ("40.00 CAD monthly"),
+	 * and it is the one place the monthly rule differs from private lessons, whose
+	 * per-lesson fee is multiplied by the lessons that fall in the month.
+	 *
+	 * @param list<array{start: string, end: string}> $windows
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function billGroupMonthly( \DateTimeImmutable $now, string $today, Enrollment $enrollment, Offering $offering, array $windows, array &$buckets ): void { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found
+		// Count this enrolment's sessions per calendar month. The count does not
+		// price the month — it names it on the student's notice ("3 sessions").
+		$months = [];
+		foreach ( $windows as $window ) {
+			$start                             = new \DateTimeImmutable( $window['start'] );
+			$months[ $start->format( 'Y-m' ) ] = ( $months[ $start->format( 'Y-m' ) ] ?? 0 ) + 1;
+		}
+
+		foreach ( $months as $month => $count ) {
+			$monthStart = ( new \DateTimeImmutable( $month . '-01' ) )->format( 'Y-m-d' );
+			if ( $monthStart > $today ) {
+				continue;
+			}
+
+			if ( $this->payments->scheduledPaymentExists( Payment::REG_ENROLLMENT, (int) $enrollment->id, $month ) ) {
+				continue;
+			}
+
+			$this->bill(
+				$buckets,
+				Payment::REG_ENROLLMENT,
+				(int) $enrollment->id,
+				$enrollment->studentId,
+				$enrollment->instructorId,
+				$offering->price,
+				$offering->currency,
+				$offering->etransferEmail,
+				$monthStart,
+				$month,
+				sprintf(
+					/* translators: 1: offering title, 2: month, 3: number of sessions */
+					_n( '%1$s (%2$s): %3$d session', '%1$s (%2$s): %3$d sessions', $count, 'unsupervised-schedular' ),
+					$offering->title,
+					( new \DateTimeImmutable( $month . '-01' ) )->format( 'F Y' ),
+					$count
+				)
+			);
+		}
+	}
+
+	/**
+	 * Create one scheduled payment and, when it is pending (not a comp auto-pay),
+	 * add it to the student's notice bucket with the label to show on the notice.
+	 * Credits are applied later, once the whole bucket is known. Returns the created
+	 * payment, or null when there was nothing to charge.
+	 *
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function bill( array &$buckets, string $type, int $registrationId, int $studentId, int $instructorId, float $amount, string $currency, ?string $etransferEmail, string $dueDate, string $periodKey, string $label ): ?Payment {
+		$payment = $this->payments->createForRegistration( $type, $registrationId, $studentId, $instructorId, $amount, $currency, $etransferEmail, $dueDate, $periodKey );
+
+		if ( null !== $payment && null !== $payment->id && Payment::STATUS_PENDING === $payment->status ) {
+			$buckets[ $studentId ][] = [
+				'payment' => $payment,
+				'label'   => $label,
+			];
+		}
+
+		return $payment;
+	}
+
+	/**
+	 * For each student, apply any account credit they hold against the run's charges,
+	 * tag the payments they still owe with a shared batch reference, and email them
+	 * one itemised notice. The notice lists each charge at its full amount, then the
+	 * credit applied and the reduced total due; a charge fully covered by credit is
+	 * already settled and carries no reference. A lump-sum e-transfer for the balance
+	 * reconciles to the reference.
+	 *
+	 * @param array<int, list<array{payment: Payment, label: string}>> $buckets
+	 */
+	private function sendNotices( array $buckets ): void {
+		foreach ( $buckets as $studentId => $entries ) {
+			$payments = array_map( static fn( array $entry ): Payment => $entry['payment'], $entries );
+			$applied  = $this->payments->applyCredits( $studentId, $payments );
+
+			$items       = [];
+			$batchIds    = [];
+			$creditTotal = 0.0;
+
+			foreach ( $entries as $entry ) {
+				$payment  = $entry['payment'];
+				$id       = (int) $payment->id;
+				$credited = $applied[ $id ] ?? 0.0;
+
+				$creditTotal += $credited;
+
+				$items[] = [
+					'label'           => $entry['label'],
+					'amount'          => $payment->total(),
+					'currency'        => $payment->currency,
+					'due_date'        => $payment->dueDate,
+					'etransfer_email' => $payment->etransferEmail,
+				];
+
+				// A charge still carrying a balance is what a lump-sum e-transfer covers;
+				// one fully settled by credit needs no reconciliation reference.
+				if ( round( $payment->total() - $credited, 2 ) > 0.0 ) {
+					$batchIds[] = $id;
+				}
+			}
+
+			$reference = [] !== $batchIds ? $this->reference() : '';
+			$this->payments->assignNoticeBatch( $batchIds, $reference );
+
+			$user = get_userdata( $studentId );
+			if ( $user instanceof \WP_User ) {
+				$this->mailer->send( $user, $items, $reference, round( $creditTotal, 2 ) );
+			}
+		}
+	}
+
+	/**
+	 * A short, human-quotable reference shared by every payment in one student's
+	 * notice, printed on the email and shown in the admin payments queue.
+	 */
+	private function reference(): string {
+		return strtoupper( substr( str_replace( '-', '', Val::string( wp_generate_uuid4() ) ), 0, 10 ) );
+	}
+
+	private function now(): \DateTimeImmutable {
+		$mysql = Val::string( current_time( 'mysql' ) );
+
+		return false !== strtotime( $mysql ) ? new \DateTimeImmutable( $mysql ) : new \DateTimeImmutable();
+	}
+}

src/Plugin.php

@@ -10,6 +10,7 @@ use Unsupervised\Schedular\Auth\RegistrationLoginGate;
 use Unsupervised\Schedular\Auth\RegistrationMailer;
 use Unsupervised\Schedular\Auth\RegistrationPage;
 use Unsupervised\Schedular\Auth\RoleManager;
+use Unsupervised\Schedular\Auth\StudentAdminGuard;
 use Unsupervised\Schedular\Booking\BookingPage;
 use Unsupervised\Schedular\Availability\AvailabilityRepository;
 use Unsupervised\Schedular\Booking\BookingRepository;
@@ -18,9 +19,12 @@ use Unsupervised\Schedular\GroupClass\GroupAccessRepository;
 use Unsupervised\Schedular\GroupClass\GroupClassPage;
 use Unsupervised\Schedular\Offering\OfferingRepository;
 use Unsupervised\Schedular\Payment\BillingMethodResolver;
+use Unsupervised\Schedular\Payment\CreditRepository;
 use Unsupervised\Schedular\Payment\PaymentRepository;
+use Unsupervised\Schedular\Payment\PaymentDueMailer;
 use Unsupervised\Schedular\Payment\PaymentService;
 use Unsupervised\Schedular\Payment\ReceiptMailer;
+use Unsupervised\Schedular\Payment\ScheduledBillingRunner;
 use Unsupervised\Schedular\Payment\StripeGateway;
 use Unsupervised\Schedular\Payment\StudioSettings;
 use Unsupervised\Schedular\Policy\AcceptanceRepository;
@@ -48,10 +52,20 @@ class Plugin {
 			( new Installer() )->run();
 		}
 
-		$availability     = new AvailabilityRepository( $wpdb );
-		$bookings         = new BookingRepository( $wpdb );
-		$offerings        = new OfferingRepository( $wpdb );
-		$questions        = new QuestionRepository( $wpdb );
+		$availability = new AvailabilityRepository( $wpdb );
+		$bookings     = new BookingRepository( $wpdb );
+		$offerings    = new OfferingRepository( $wpdb );
+		$questions    = new QuestionRepository( $wpdb );
+
+		// One-time repair for sites where dbDelta left us_questions.offering_id
+		// NOT NULL (it does not reliably relax NULL-ability), which breaks
+		// account-scope registration questions. Guarded by its own flag rather
+		// than the version gate, since affected sites may already be on the
+		// current version. The flag is only set once the ALTER succeeds.
+		if ( '1' !== get_option( 'us_questions_offering_nullable', '' ) && $questions->ensureOfferingNullable() ) {
+			update_option( 'us_questions_offering_nullable', '1' );
+		}
+
 		$answers          = new AnswerRepository( $wpdb );
 		$policies         = new PolicyRepository( $wpdb );
 		$policyVersions   = new PolicyVersionRepository( $wpdb );
@@ -63,10 +77,11 @@ class Plugin {
 		$registrationGate = new RegistrationGate( $questions, $answers, $policies, $policyVersions, $acceptances );
 
 		$paymentRepo    = new PaymentRepository( $wpdb );
+		$creditRepo     = new CreditRepository( $wpdb );
 		$settings       = new StudioSettings();
 		$resolver       = new BillingMethodResolver( $settings );
 		$stripe         = new StripeGateway( $settings );
-		$paymentService = new PaymentService( $paymentRepo, $resolver, new ReceiptMailer(), $bookings, $enrollments, $settings, $stripe );
+		$paymentService = new PaymentService( $paymentRepo, $resolver, new ReceiptMailer(), $bookings, $enrollments, $settings, $stripe, $creditRepo );
 
 		// The shortcode and block wrappers share the same page objects so
 		// front-end output is identical whichever way a page embeds them.
@@ -77,11 +92,14 @@ class Plugin {
 		$registrationPage = new RegistrationPage( $invites, $policies, $policyVersions, $acceptances, $settings, $registrationMailer, $questions, $answers, $groupAccess );
 		$groupClassPage   = new GroupClassPage();
 
+		( new ScheduledBillingRunner( $paymentService, $bookings, $enrollments, $offerings, new PaymentDueMailer() ) )->register();
+
 		( new UpdateChecker() )->register();
 		( new RoleManager() )->register();
 		( new RegistrationLoginGate() )->register();
+		( new StudentAdminGuard() )->register();
 		( new EmailConfirmationHandler( $settings, $registrationMailer ) )->register();
-		( new AdminMenu( $availability, $bookings, $offerings, $questions, $answers, $policies, $policyVersions, $policyService, $acceptances, $invites, $enrollments, $groupAccess, $settings, $paymentRepo, $paymentService, $resolver, $registrationMailer ) )->register();
+		( new AdminMenu( $availability, $bookings, $offerings, $questions, $answers, $policies, $policyVersions, $policyService, $acceptances, $invites, $enrollments, $groupAccess, $settings, $paymentRepo, $paymentService, $resolver, $registrationMailer, $creditRepo ) )->register();
 		( new RestRegistrar( $availability, $bookings, $offerings, $questions, $policies, $policyVersions, $policyService, $registrationGate, $enrollments, $groupAccess, $paymentService ) )->register();
 		( new ShortcodeRegistrar( $bookingPage, $loginPage, $registrationPage, $groupClassPage ) )->register();
 		( new BlockRegistrar( $bookingPage, $loginPage, $registrationPage, $groupClassPage ) )->register();

src/Policy/Policy.php

@@ -18,6 +18,12 @@ class Policy {
 	 */
 	public const VALID_SCOPES = [ self::SCOPE_SIGNUP, self::SCOPE_BOOKING, self::SCOPE_BOTH ];
 
+	/** Maximum length of the title, matching the `title` VARCHAR(191) column. */
+	public const MAX_TITLE_LENGTH = 191;
+
+	/** Maximum length of the slug, matching the `slug` VARCHAR(191) column. */
+	public const MAX_SLUG_LENGTH = 191;
+
 	public function __construct(
 		public readonly string $title,
 		public readonly string $slug,

src/Policy/PolicyController.php

@@ -19,20 +19,35 @@ class PolicyController {
 			wp_die( esc_html__( 'You do not have permission to manage policies.', 'unsupervised-schedular' ) );
 		}
 
+		$notice        = '';
+		$viewVersionId = 0;
+
 		if ( isset( $_POST['usc_action'] ) && check_admin_referer( 'usc_policy_action' ) ) {
-			$this->handleFormAction();
+			[ $notice, $viewVersionId ] = $this->handleFormAction();
 		}
 
-		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only policy selector.
-		$policyId       = absint( Val::int( $_GET['policy_id'] ?? 0 ) );
+		// phpcs:disable WordPress.Security.NonceVerification.Recommended -- read-only policy/version selectors.
+		$policyId = absint( Val::int( $_GET['policy_id'] ?? 0 ) );
+		if ( 0 === $viewVersionId ) {
+			$viewVersionId = absint( Val::int( $_GET['version_id'] ?? 0 ) );
+		}
+		// phpcs:enable WordPress.Security.NonceVerification.Recommended
+
 		$policyList     = $this->policies->findAll();
 		$selectedPolicy = $policyId > 0 ? $this->policies->findById( $policyId ) : null;
 		$policyVersions = null !== $selectedPolicy ? $this->versions->findByPolicy( (int) $selectedPolicy->id ) : null;
+		$viewedVersion  = null !== $selectedPolicy ? $this->loadVersionForPolicy( (int) $selectedPolicy->id, $viewVersionId ) : null;
 
 		include USC_PLUGIN_DIR . 'templates/admin/policies.php';
 	}
 
-	private function handleFormAction(): void {
+	/**
+	 * Process the posted action.
+	 *
+	 * @return array{string, int} Status notice, and the version to open in the
+	 *                            viewer (0 to leave the current selection alone).
+	 */
+	private function handleFormAction(): array {
 		// Nonce is verified by the caller (renderPage) before this method runs.
 		// phpcs:disable WordPress.Security.NonceVerification.Missing
 		$action = sanitize_key( Val::string( wp_unslash( $_POST['usc_action'] ?? '' ) ) );
@@ -47,16 +62,18 @@ class PolicyController {
 				$scope = Policy::SCOPE_BOOKING;
 			}
 
-			if ( '' !== $title && '' !== $slug && null === $this->policies->findBySlug( $slug ) ) {
+			$withinLimits = mb_strlen( $title ) <= Policy::MAX_TITLE_LENGTH && mb_strlen( $slug ) <= Policy::MAX_SLUG_LENGTH;
+
+			if ( '' !== $title && '' !== $slug && $withinLimits && null === $this->policies->findBySlug( $slug ) ) {
 				$this->service->createPolicy( $title, $slug, $scope );
 			}
 
-			return;
+			return [ '', 0 ];
 		}
 
 		$policyId = absint( Val::int( $_POST['policy_id'] ?? 0 ) );
 		if ( $policyId <= 0 || null === $this->policies->findById( $policyId ) ) {
-			return;
+			return [ '', 0 ];
 		}
 
 		if ( 'add_version' === $action ) {
@@ -64,6 +81,40 @@ class PolicyController {
 			$this->service->addDraftVersion( $policyId, $body );
 		}
 
+		if ( 'edit_version' === $action ) {
+			$source = $this->loadVersionForPolicy( $policyId, absint( Val::int( $_POST['version_id'] ?? 0 ) ) );
+			if ( null === $source ) {
+				return [ '', 0 ];
+			}
+
+			$body = wp_kses_post( Val::string( wp_unslash( $_POST['body'] ?? '' ) ) );
+
+			// A draft has never been shown to a student, so it is edited in place.
+			// A published (or archived) version is what students accepted, so an
+			// edit branches a new draft and leaves the original untouched.
+			if ( PolicyVersion::STATUS_DRAFT === $source->status ) {
+				$this->versions->updateBody( (int) $source->id, $body );
+
+				return [
+					sprintf(
+						/* translators: %d: the edited version number. */
+						__( 'Draft version %d was updated.', 'unsupervised-schedular' ),
+						$source->versionNumber
+					),
+					(int) $source->id,
+				];
+			}
+
+			return [
+				sprintf(
+					/* translators: %d: the version number the edit was based on. */
+					__( 'Your changes to version %d were saved as a new draft version.', 'unsupervised-schedular' ),
+					$source->versionNumber
+				),
+				$this->service->addDraftVersion( $policyId, $body ),
+			];
+		}
+
 		if ( 'publish_version' === $action ) {
 			$versionId = absint( Val::int( $_POST['version_id'] ?? 0 ) );
 			if ( $versionId > 0 ) {
@@ -71,5 +122,20 @@ class PolicyController {
 			}
 		}
 		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		return [ '', 0 ];
+	}
+
+	/**
+	 * Load a version by id, confirming it belongs to the given policy.
+	 */
+	private function loadVersionForPolicy( int $policyId, int $versionId ): ?PolicyVersion {
+		if ( $versionId <= 0 ) {
+			return null;
+		}
+
+		$version = $this->versions->findById( $versionId );
+
+		return null !== $version && $version->policyId === $policyId ? $version : null;
 	}
 }

src/Policy/PolicyEndpoint.php

@@ -104,9 +104,9 @@ class PolicyEndpoint {
 				'policy_version_id' => $version->id,
 				'version_number'    => $version->versionNumber,
 				// Bodies are kses'd on every write path, but the booking JS renders
-				// this HTML raw — sanitise at output too so a missed write path can
-				// never become stored XSS.
-				'body'              => wp_kses_post( (string) $version->body ),
+				// this HTML raw — bodyHtml() sanitises at output too, so a missed
+				// write path can never become stored XSS.
+				'body'              => $version->bodyHtml(),
 			];
 		}
 
@@ -118,12 +118,30 @@ class PolicyEndpoint {
 		if ( '' === $title ) {
 			return $this->invalid( __( 'A policy title is required.', 'unsupervised-schedular' ) );
 		}
+		if ( mb_strlen( $title ) > Policy::MAX_TITLE_LENGTH ) {
+			return $this->invalid(
+				sprintf(
+					/* translators: %d: maximum character count. */
+					__( 'The policy title must be %d characters or fewer.', 'unsupervised-schedular' ),
+					Policy::MAX_TITLE_LENGTH
+				)
+			);
+		}
 
 		$slugParam = sanitize_text_field( Val::string( $request->get_param( 'slug' ) ) );
 		$slug      = sanitize_title( '' !== $slugParam ? $slugParam : $title );
 		if ( '' === $slug ) {
 			return $this->invalid( __( 'A valid policy slug is required.', 'unsupervised-schedular' ) );
 		}
+		if ( mb_strlen( $slug ) > Policy::MAX_SLUG_LENGTH ) {
+			return $this->invalid(
+				sprintf(
+					/* translators: %d: maximum character count. */
+					__( 'The policy slug must be %d characters or fewer.', 'unsupervised-schedular' ),
+					Policy::MAX_SLUG_LENGTH
+				)
+			);
+		}
 
 		if ( null !== $this->policies->findBySlug( $slug ) ) {
 			return new \WP_Error( 'duplicate_slug', __( 'A policy with that slug already exists.', 'unsupervised-schedular' ), [ 'status' => 409 ] );

src/Policy/PolicyVersion.php

@@ -42,6 +42,19 @@ class PolicyVersion {
 		return self::STATUS_PUBLISHED === $this->status;
 	}
 
+	/**
+	 * The body as display-ready HTML.
+	 *
+	 * Policy bodies are typed into a plain textarea, so most are written as
+	 * blank-line-separated prose with no markup at all — dropped into a page
+	 * as-is that collapses into one unreadable run of text. Running the same
+	 * `wpautop()` WordPress applies to post content turns those breaks into
+	 * paragraphs, and leaves bodies that do carry markup alone.
+	 */
+	public function bodyHtml(): string {
+		return wpautop( wp_kses_post( (string) $this->body ) );
+	}
+
 	/**
 	 * Returns a plain array representation of the version.
 	 *

src/Registration/Question.php

@@ -12,6 +12,9 @@ class Question {
 	public const FIELD_SELECT   = 'select';
 	public const FIELD_CHECKBOX = 'checkbox';
 
+	/** Maximum length of a question label, matching the `label` VARCHAR(255) column. */
+	public const MAX_LABEL_LENGTH = 255;
+
 	/** Question is scoped to a single offering, asked at booking/enrolment time. */
 	public const SCOPE_OFFERING = 'offering';
 

src/Registration/QuestionController.php

@@ -85,7 +85,7 @@ class QuestionController {
 		$label     = sanitize_text_field( Val::string( wp_unslash( $_POST['label'] ?? '' ) ) );
 		$fieldType = sanitize_key( Val::string( wp_unslash( $_POST['field_type'] ?? Question::FIELD_TEXT ) ) );
 
-		if ( '' === $label || ! in_array( $fieldType, Question::VALID_FIELD_TYPES, true ) ) {
+		if ( '' === $label || mb_strlen( $label ) > Question::MAX_LABEL_LENGTH || ! in_array( $fieldType, Question::VALID_FIELD_TYPES, true ) ) {
 			return;
 		}
 

src/Registration/QuestionEndpoint.php

@@ -79,6 +79,9 @@ class QuestionEndpoint {
 		if ( '' === $label ) {
 			return $this->invalid( __( 'A question label is required.', 'unsupervised-schedular' ) );
 		}
+		if ( mb_strlen( $label ) > Question::MAX_LABEL_LENGTH ) {
+			return $this->invalid( $this->tooLongMessage( __( 'question', 'unsupervised-schedular' ), Question::MAX_LABEL_LENGTH ) );
+		}
 
 		$fieldType = Val::string( $request->get_param( 'field_type' ) ?? Question::FIELD_TEXT );
 		if ( ! in_array( $fieldType, Question::VALID_FIELD_TYPES, true ) ) {
@@ -118,9 +121,17 @@ class QuestionEndpoint {
 			return $this->invalid( __( 'Invalid field type.', 'unsupervised-schedular' ) );
 		}
 
+		$label = $request->has_param( 'label' ) ? sanitize_text_field( Val::string( $request->get_param( 'label' ) ) ) : $existing->label;
+		if ( '' === $label ) {
+			return $this->invalid( __( 'A question label is required.', 'unsupervised-schedular' ) );
+		}
+		if ( mb_strlen( $label ) > Question::MAX_LABEL_LENGTH ) {
+			return $this->invalid( $this->tooLongMessage( __( 'question', 'unsupervised-schedular' ), Question::MAX_LABEL_LENGTH ) );
+		}
+
 		$question = new Question(
 			offeringId: $existing->offeringId,
-			label:      $request->has_param( 'label' ) ? sanitize_text_field( Val::string( $request->get_param( 'label' ) ) ) : $existing->label,
+			label:      $label,
 			fieldType:  $fieldType,
 			options:    $request->has_param( 'options' ) ? $this->sanitizeOptions( $request->get_param( 'options' ) ) : $existing->options,
 			isRequired: $request->has_param( 'is_required' ) ? (bool) $request->get_param( 'is_required' ) : $existing->isRequired,
@@ -217,4 +228,16 @@ class QuestionEndpoint {
 	private function invalid( string $message ): \WP_Error {
 		return new \WP_Error( 'invalid_question', $message, [ 'status' => 400 ] );
 	}
+
+	/**
+	 * Build a uniform "too long" validation message for a named field.
+	 */
+	private function tooLongMessage( string $field, int $max ): string {
+		return sprintf(
+			/* translators: 1: field name, 2: maximum character count. */
+			__( 'The %1$s must be %2$d characters or fewer.', 'unsupervised-schedular' ),
+			$field,
+			$max
+		);
+	}
 }

src/Registration/QuestionRepository.php

@@ -106,4 +106,26 @@ class QuestionRepository {
 			[ '%d' ]
 		);
 	}
+
+	/**
+	 * Relax `offering_id` to allow NULL for account-scope questions (which are
+	 * not tied to an offering).
+	 *
+	 * The account-questions feature (v1.1.0) made the column nullable in the
+	 * schema, but dbDelta does not reliably change a column from NOT NULL to
+	 * NULL, so sites created before then keep the old NOT NULL column and reject
+	 * account-scope inserts with "Column 'offering_id' cannot be null". This
+	 * MODIFY is idempotent — re-applying the nullable definition is a no-op.
+	 *
+	 * @return bool True when the statement ran (or was already applied), false
+	 *              if it could not be prepared or the query failed.
+	 */
+	public function ensureOfferingNullable(): bool {
+		$sql = $this->db->prepare(
+			'ALTER TABLE %i MODIFY offering_id BIGINT UNSIGNED NULL DEFAULT NULL',
+			$this->table
+		);
+
+		return null !== $sql && false !== $this->db->query( $sql );
+	}
 }

src/Schema.php

@@ -64,6 +64,8 @@ class Schema {
                 term_start       DATE            DEFAULT NULL,
                 term_end         DATE            DEFAULT NULL,
                 class_time       TIME            DEFAULT NULL,
+                enrollment_deadline DATE         DEFAULT NULL,
+                withdrawal_deadline DATE         DEFAULT NULL,
                 schedule_note    VARCHAR(191)    DEFAULT NULL,
                 etransfer_email  VARCHAR(191)    DEFAULT NULL,
                 cancellation_cutoff_hours SMALLINT UNSIGNED DEFAULT NULL,
@@ -158,6 +160,10 @@ class Schema {
                 status                   VARCHAR(20)     NOT NULL DEFAULT 'pending',
                 tax_rate                 DECIMAL(5,2)    NOT NULL DEFAULT 0,
                 tax_amount               DECIMAL(10,2)   NOT NULL DEFAULT 0,
+                credit_applied           DECIMAL(10,2)   NOT NULL DEFAULT 0,
+                due_date                 DATE            DEFAULT NULL,
+                period_key               VARCHAR(20)     DEFAULT NULL,
+                notice_batch             VARCHAR(32)     DEFAULT NULL,
                 etransfer_email          VARCHAR(191)    DEFAULT NULL,
                 stripe_payment_intent_id VARCHAR(255)    DEFAULT NULL,
                 receipt_number           VARCHAR(50)     DEFAULT NULL,
@@ -171,6 +177,24 @@ class Schema {
                 KEY status (status)
             ) {$charset};",
 
+			"CREATE TABLE {$prefix}us_credits (
+                id                BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+                student_id        BIGINT UNSIGNED NOT NULL,
+                amount            DECIMAL(10,2)   NOT NULL DEFAULT 0,
+                remaining         DECIMAL(10,2)   NOT NULL DEFAULT 0,
+                currency          VARCHAR(3)      NOT NULL DEFAULT 'CAD',
+                source_payment_id BIGINT UNSIGNED DEFAULT NULL,
+                source_lesson_id  BIGINT UNSIGNED DEFAULT NULL,
+                reason            VARCHAR(191)    DEFAULT NULL,
+                status            VARCHAR(20)     NOT NULL DEFAULT 'available',
+                created_at        DATETIME        NOT NULL,
+                updated_at        DATETIME        DEFAULT NULL,
+                PRIMARY KEY (id),
+                KEY student_id (student_id),
+                KEY status (status),
+                KEY source_lesson_id (source_lesson_id)
+            ) {$charset};",
+
 			"CREATE TABLE {$prefix}us_group_enrollments (
                 id            BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
                 offering_id   BIGINT UNSIGNED NOT NULL,

src/ShortcodeRegistrar.php

@@ -23,6 +23,9 @@ class ShortcodeRegistrar {
 		add_shortcode( 'us_student_login', self::shortcode( [ $this->loginPage, 'render' ] ) );
 		add_shortcode( 'us_student_register', self::shortcode( [ $this->registrationPage, 'render' ] ) );
 		add_shortcode( 'us_group_classes', self::shortcode( [ $this->groupClassPage, 'render' ] ) );
+		// Process registration submissions before output so the invite branch's
+		// auth cookie is actually sent (render() runs too late, during the_content).
+		add_action( 'template_redirect', [ $this->registrationPage, 'maybeHandleSubmit' ] );
 		add_action( 'template_redirect', [ $this->registrationPage, 'maybeRedirectToRegistrationPage' ] );
 		add_action( 'wp_enqueue_scripts', [ $this, 'enqueueAssets' ] );
 	}
@@ -61,14 +64,20 @@ class ShortcodeRegistrar {
 			'nonce'       => wp_create_nonce( 'wp_rest' ),
 			'stripeKey'   => $settings->publishableKey(),
 			'startOfWeek' => Val::int( get_option( 'start_of_week', 1 ) ),
+			// The studio HST rate, so a price quoted to a student on the way in
+			// matches the total they are actually billed.
+			'taxRate'     => $settings->hstRate(),
 		];
 
 		// Attach the shared config to the payment helper so it is defined before the
 		// booking/group scripts (which depend on it) run.
 		wp_localize_script( 'us-scheduler-payment', 'usScheduler', $data );
 
-		wp_register_script( 'us-scheduler', USC_PLUGIN_URL . 'assets/js/booking.js', [ 'us-scheduler-payment' ], USC_VERSION, true );
-		wp_register_script( 'us-scheduler-group', USC_PLUGIN_URL . 'assets/js/group-classes.js', [ 'us-scheduler-payment' ], USC_VERSION, true );
+		// Price formatting and the pay agreement, shared by booking and enrolment.
+		wp_register_script( 'us-scheduler-pricing', USC_PLUGIN_URL . 'assets/js/pricing.js', [ 'us-scheduler-payment' ], USC_VERSION, true );
+
+		wp_register_script( 'us-scheduler', USC_PLUGIN_URL . 'assets/js/booking.js', [ 'us-scheduler-pricing' ], USC_VERSION, true );
+		wp_register_script( 'us-scheduler-group', USC_PLUGIN_URL . 'assets/js/group-classes.js', [ 'us-scheduler-pricing' ], USC_VERSION, true );
 
 		// Progressive enhancement for the two-step registration form (no dependencies).
 		wp_register_script( 'us-scheduler-register', USC_PLUGIN_URL . 'assets/js/register.js', [], USC_VERSION, true );

src/Update/UpdateChecker.php

@@ -75,9 +75,18 @@ class UpdateChecker {
 	}
 
 	/**
-	 * `update_plugins_{hostname}` filter callback. Returns the incoming
-	 * value untouched unless a newer release with a zip asset exists, in
-	 * which case it returns the update array core expects.
+	 * `update_plugins_{hostname}` filter callback.
+	 *
+	 * For a newer release with a zip asset, returns the update array core
+	 * files under the transient's `response` list (the update offer).
+	 * Otherwise — the plugin is current, or the release lookup failed — it
+	 * returns a payload with the installed version and no package, which core
+	 * files under `no_update`. That `no_update` entry is what sets core's
+	 * `update-supported` flag and makes the "Enable auto-updates" toggle
+	 * appear on the Plugins screen; without it, an off-directory plugin is
+	 * absent from the transient between releases and the toggle never shows.
+	 *
+	 * The incoming value is only passed through untouched for other plugins.
 	 */
 	public function provideUpdate( mixed $update, mixed $plugin_data, mixed $plugin_file ): mixed {
 		if ( plugin_basename( USC_PLUGIN_FILE ) !== $plugin_file ) {
@@ -86,19 +95,24 @@ class UpdateChecker {
 
 		$release = $this->latestRelease();
 
-		if ( '' === $release['version'] || '' === $release['package'] ) {
-			return $update;
-		}
-
-		if ( version_compare( $release['version'], USC_VERSION, '<=' ) ) {
-			return $update;
+		if ( '' !== $release['version'] && '' !== $release['package']
+			&& version_compare( $release['version'], USC_VERSION, '>' ) ) {
+			return [
+				'slug'    => 'unsupervised-schedular',
+				'version' => $release['version'],
+				'url'     => self::REPO_URL,
+				'package' => $release['package'],
+			];
 		}
 
+		// No newer release: answer with a `no_update` payload so core keeps
+		// the plugin in the update transient and shows the auto-update toggle.
+		// The empty package leaves core nothing to auto-install, as intended.
 		return [
 			'slug'    => 'unsupervised-schedular',
-			'version' => $release['version'],
+			'version' => USC_VERSION,
 			'url'     => self::REPO_URL,
-			'package' => $release['package'],
+			'package' => '',
 		];
 	}
 

templates/admin/lesson-detail.php

@@ -0,0 +1,121 @@
+<?php
+declare(strict_types=1);
+
+if (! defined('ABSPATH')) {
+    exit;
+}
+
+/**
+ * @var array{lesson_id: int, student: string, instructor: string, offering: string, duration: int, recurrence: string, time: string, status: string, notes: string, payment_id: int, currency: string, total: float}|null $row
+ * @var list<array{question: string, answer: string}> $answers
+ * @var list<array{policy: string, version: string, accepted_at: string, ip: string}> $accepts
+ * @var string $backUrl
+ */
+?>
+<div class="wrap">
+    <h1><?php esc_html_e('Lesson details', 'unsupervised-schedular'); ?></h1>
+
+    <p><a href="<?php echo esc_url($backUrl); ?>">&laquo; <?php esc_html_e('Back to lessons', 'unsupervised-schedular'); ?></a></p>
+
+    <?php if (null === $row) : ?>
+        <p><?php esc_html_e('This lesson could not be found.', 'unsupervised-schedular'); ?></p>
+    <?php else : ?>
+        <table class="form-table">
+            <tbody>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Lesson', 'unsupervised-schedular'); ?></th>
+                    <td>
+                        <?php echo esc_html($row['offering']); ?>
+                        <?php if ($row['duration'] > 0) : ?>
+                            <?php
+                            /* translators: %d: lesson length in minutes */
+                            echo esc_html(sprintf(__('(%d min)', 'unsupervised-schedular'), $row['duration']));
+                            ?>
+                        <?php endif; ?>
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Student', 'unsupervised-schedular'); ?></th>
+                    <td><?php echo esc_html($row['student']); ?></td>
+                </tr>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Instructor', 'unsupervised-schedular'); ?></th>
+                    <td><?php echo esc_html($row['instructor']); ?></td>
+                </tr>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Date/Time', 'unsupervised-schedular'); ?></th>
+                    <td>
+                        <?php echo esc_html($row['time']); ?>
+                        <?php if ('weekly' === $row['recurrence']) : ?>
+                            <em>(<?php esc_html_e('weekly', 'unsupervised-schedular'); ?>)</em>
+                        <?php endif; ?>
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Status', 'unsupervised-schedular'); ?></th>
+                    <td><?php echo esc_html($row['status']); ?></td>
+                </tr>
+                <?php if ($row['payment_id'] > 0) : ?>
+                    <tr>
+                        <th scope="row"><?php esc_html_e('Total', 'unsupervised-schedular'); ?></th>
+                        <td><?php echo esc_html($row['currency'] . ' ' . number_format($row['total'], 2)); ?></td>
+                    </tr>
+                <?php endif; ?>
+                <?php if ('' !== $row['notes']) : ?>
+                    <tr>
+                        <th scope="row"><?php esc_html_e('Notes', 'unsupervised-schedular'); ?></th>
+                        <td><?php echo esc_html($row['notes']); ?></td>
+                    </tr>
+                <?php endif; ?>
+            </tbody>
+        </table>
+
+        <h2><?php esc_html_e('Policies accepted', 'unsupervised-schedular'); ?></h2>
+        <?php if (empty($accepts)) : ?>
+            <p><?php esc_html_e('None recorded for this booking.', 'unsupervised-schedular'); ?></p>
+        <?php else : ?>
+            <table class="wp-list-table widefat fixed striped">
+                <thead>
+                    <tr>
+                        <th><?php esc_html_e('Policy', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Version', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Accepted', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('IP address', 'unsupervised-schedular'); ?></th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php foreach ($accepts as $acceptance) : ?>
+                        <tr>
+                            <td><?php echo esc_html($acceptance['policy']); ?></td>
+                            <td><?php echo esc_html($acceptance['version']); ?></td>
+                            <td><?php echo esc_html('' !== $acceptance['accepted_at'] ? (string) mysql2date('M j, Y g:i A', $acceptance['accepted_at']) : '—'); ?></td>
+                            <td><?php echo esc_html('' !== $acceptance['ip'] ? $acceptance['ip'] : '—'); ?></td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        <?php endif; ?>
+
+        <h2><?php esc_html_e('Intake answers', 'unsupervised-schedular'); ?></h2>
+        <?php if (empty($answers)) : ?>
+            <p><?php esc_html_e('None recorded for this booking.', 'unsupervised-schedular'); ?></p>
+        <?php else : ?>
+            <table class="wp-list-table widefat fixed striped">
+                <thead>
+                    <tr>
+                        <th><?php esc_html_e('Question', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Answer', 'unsupervised-schedular'); ?></th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php foreach ($answers as $answer) : ?>
+                        <tr>
+                            <td><?php echo esc_html($answer['question']); ?></td>
+                            <td><?php echo esc_html($answer['answer']); ?></td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        <?php endif; ?>
+    <?php endif; ?>
+</div>

templates/admin/lessons.php

@@ -6,10 +6,10 @@ if (! defined('ABSPATH')) {
 }
 
 /**
- * @var list<array{student: string, instructor: string, time: string, day: string, time_short: string, status: string, notes: string, payment_id: int, currency: string, amount: float, tax_rate: float, tax_amount: float, total: float, etransfer_email: string, etransfer_editable: bool, tax_editable: bool}> $rows
+ * @var list<array{lesson_id: int, student: string, instructor: string, offering: string, duration: int, recurrence: string, time: string, day: string, time_short: string, status: string, notes: string, payment_id: int, currency: string, amount: float, tax_rate: float, tax_amount: float, total: float, etransfer_email: string, etransfer_editable: bool, tax_editable: bool}> $rows
  * @var 'list'|'week' $view
  * @var string $weekStart
- * @var list<array{date: string, items: list<array{student: string, time_short: string, status: string}>}> $weekDays
+ * @var list<array{date: string, items: list<array{lesson_id: int, student: string, offering: string, time_short: string, status: string}>}> $weekDays
  * @var string $prevWeek
  * @var string $nextWeek
  * @var string $baseUrl
@@ -58,7 +58,9 @@ if (! defined('ABSPATH')) {
                                 <p style="margin:0 0 8px;">
                                     <strong><?php echo esc_html($item['time_short']); ?></strong><br>
                                     <?php echo esc_html($item['student']); ?><br>
-                                    <em><?php echo esc_html($item['status']); ?></em>
+                                    <span><?php echo esc_html($item['offering']); ?></span><br>
+                                    <em><?php echo esc_html($item['status']); ?></em><br>
+                                    <a href="<?php echo esc_url(add_query_arg('lesson_id', (string) $item['lesson_id'], $baseUrl)); ?>"><?php esc_html_e('Details', 'unsupervised-schedular'); ?></a>
                                 </p>
                             <?php endforeach; ?>
                         </td>
@@ -74,12 +76,14 @@ if (! defined('ABSPATH')) {
                 <tr>
                     <th><?php esc_html_e('Student', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('Instructor', 'unsupervised-schedular'); ?></th>
+                    <th><?php esc_html_e('Lesson', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('Date/Time', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('Status', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('HST', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('Total', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('E-transfer email', 'unsupervised-schedular'); ?></th>
                     <th><?php esc_html_e('Notes', 'unsupervised-schedular'); ?></th>
+                    <th><?php esc_html_e('Details', 'unsupervised-schedular'); ?></th>
                 </tr>
             </thead>
             <tbody>
@@ -87,6 +91,17 @@ if (! defined('ABSPATH')) {
                     <tr>
                         <td><?php echo esc_html($row['student']); ?></td>
                         <td><?php echo esc_html($row['instructor']); ?></td>
+                        <td>
+                            <?php echo esc_html($row['offering']); ?>
+                            <?php if ($row['duration'] > 0) : ?>
+                                <span style="color:#666;">
+                                    <?php
+                                    /* translators: %d: lesson length in minutes */
+                                    echo esc_html(sprintf(__('(%d min)', 'unsupervised-schedular'), $row['duration']));
+                                    ?>
+                                </span>
+                            <?php endif; ?>
+                        </td>
                         <td><?php echo esc_html($row['time']); ?></td>
                         <td><?php echo esc_html($row['status']); ?></td>
                         <td>
@@ -118,6 +133,9 @@ if (! defined('ABSPATH')) {
                             <?php endif; ?>
                         </td>
                         <td><?php echo esc_html($row['notes']); ?></td>
+                        <td>
+                            <a href="<?php echo esc_url(add_query_arg('lesson_id', (string) $row['lesson_id'], $baseUrl)); ?>"><?php esc_html_e('View', 'unsupervised-schedular'); ?></a>
+                        </td>
                     </tr>
                 <?php endforeach; ?>
             </tbody>

templates/admin/my-group-class-detail.php

@@ -6,7 +6,7 @@ if (! defined('ABSPATH')) {
 }
 
 /**
- * @var array{id: int|null, title: string, when: string, capacity: int|null, enrolled: int, invite_only: bool, instructor: string, price: float, currency: string, duration: int|null, description: string|null, schedule_note: string|null, active: bool, roster: list<array{student: string, status: string, payment: string|null}>, invited: list<array{who: string, kind: string}>} $class
+ * @var array{id: int|null, title: string, when: string, capacity: int|null, enrolled: int, invite_only: bool, instructor: string, price: float, currency: string, duration: int|null, description: string|null, schedule_note: string|null, deadline: string, enrollment_open: bool, active: bool, roster: list<array{student: string, status: string, payment: string|null}>, invited: list<array{who: string, kind: string}>} $class
  * @var list<array{id: int, name: string}> $students
  * @var string $notice
  * @var string $baseUrl
@@ -78,6 +78,12 @@ if (! defined('ABSPATH')) {
                 <th scope="row"><?php esc_html_e('Price', 'unsupervised-schedular'); ?></th>
                 <td><?php echo esc_html(number_format($class['price'], 2) . ' ' . $class['currency']); ?></td>
             </tr>
+            <?php if ('' !== $class['deadline']) : ?>
+                <tr>
+                    <th scope="row"><?php esc_html_e('Enrolment deadline', 'unsupervised-schedular'); ?></th>
+                    <td><?php echo esc_html($class['deadline']); ?></td>
+                </tr>
+            <?php endif; ?>
             <?php if (null !== $class['schedule_note'] && '' !== $class['schedule_note']) : ?>
                 <tr>
                     <th scope="row"><?php esc_html_e('Schedule note', 'unsupervised-schedular'); ?></th>
@@ -130,35 +136,51 @@ if (! defined('ABSPATH')) {
         </table>
     <?php endif; ?>
 
-    <?php if ($class['invite_only']) : ?>
-        <h2><?php esc_html_e('Invite &amp; enrol students', 'unsupervised-schedular'); ?></h2>
+    <h2>
+        <?php
+        echo $class['invite_only']
+            ? esc_html__('Invite &amp; enrol students', 'unsupervised-schedular')
+            : esc_html__('Add students', 'unsupervised-schedular');
+        ?>
+    </h2>
+    <?php if (! $class['enrollment_open']) : ?>
+        <p class="description"><?php esc_html_e('Enrolment has closed for this class. Students you add here are enrolled as late enrolments.', 'unsupervised-schedular'); ?></p>
+    <?php elseif ($class['invite_only']) : ?>
         <p class="description"><?php esc_html_e('This class is invite only, so students join only when you add or invite them here.', 'unsupervised-schedular'); ?></p>
+    <?php endif; ?>
 
-        <?php if (! empty($class['invited'])) : ?>
-            <h3><?php esc_html_e('Invited (not yet enrolled)', 'unsupervised-schedular'); ?></h3>
-            <ul class="ul-disc">
-                <?php foreach ($class['invited'] as $invitee) : ?>
-                    <li><?php echo esc_html($invitee['who'] . ' — ' . $invitee['kind']); ?></li>
+    <?php if ($class['invite_only'] && ! empty($class['invited'])) : ?>
+        <h3><?php esc_html_e('Invited (not yet enrolled)', 'unsupervised-schedular'); ?></h3>
+        <ul class="ul-disc">
+            <?php foreach ($class['invited'] as $invitee) : ?>
+                <li><?php echo esc_html($invitee['who'] . ' — ' . $invitee['kind']); ?></li>
+            <?php endforeach; ?>
+        </ul>
+    <?php endif; ?>
+
+    <div class="us-group-invite-controls" style="display:flex; flex-wrap:wrap; gap:2em; margin:1em 0 2em;">
+        <form method="post">
+            <?php wp_nonce_field('usc_group_action'); ?>
+            <input type="hidden" name="offering_id" value="<?php echo esc_attr((string) $class['id']); ?>">
+            <h4><?php esc_html_e('Add students directly', 'unsupervised-schedular'); ?></h4>
+            <p class="description">
+                <?php
+                echo $class['enrollment_open']
+                    ? esc_html__('Enrols them now with a pending payment.', 'unsupervised-schedular')
+                    : esc_html__('Enrols them now with a pending payment, past the enrolment deadline.', 'unsupervised-schedular');
+                ?>
+            </p>
+            <select name="student_ids[]" multiple size="5" style="min-width:16em;">
+                <?php foreach ($students as $student) : ?>
+                    <option value="<?php echo esc_attr((string) $student['id']); ?>"><?php echo esc_html($student['name']); ?></option>
                 <?php endforeach; ?>
-            </ul>
-        <?php endif; ?>
-
-        <div class="us-group-invite-controls" style="display:flex; flex-wrap:wrap; gap:2em; margin:1em 0 2em;">
-            <form method="post">
-                <?php wp_nonce_field('usc_group_action'); ?>
-                <input type="hidden" name="offering_id" value="<?php echo esc_attr((string) $class['id']); ?>">
-                <h4><?php esc_html_e('Add students directly', 'unsupervised-schedular'); ?></h4>
-                <p class="description"><?php esc_html_e('Enrols them now with a pending payment.', 'unsupervised-schedular'); ?></p>
-                <select name="student_ids[]" multiple size="5" style="min-width:16em;">
-                    <?php foreach ($students as $student) : ?>
-                        <option value="<?php echo esc_attr((string) $student['id']); ?>"><?php echo esc_html($student['name']); ?></option>
-                    <?php endforeach; ?>
-                </select>
-                <p>
-                    <button type="submit" name="usc_action" value="add_direct" class="button"><?php esc_html_e('Add to class', 'unsupervised-schedular'); ?></button>
-                </p>
-            </form>
+            </select>
+            <p>
+                <button type="submit" name="usc_action" value="add_direct" class="button"><?php esc_html_e('Add to class', 'unsupervised-schedular'); ?></button>
+            </p>
+        </form>
 
+        <?php if ($class['invite_only']) : ?>
             <form method="post">
                 <?php wp_nonce_field('usc_group_action'); ?>
                 <input type="hidden" name="offering_id" value="<?php echo esc_attr((string) $class['id']); ?>">
@@ -184,6 +206,6 @@ if (! defined('ABSPATH')) {
                     <button type="submit" name="usc_action" value="invite_email" class="button"><?php esc_html_e('Send invite', 'unsupervised-schedular'); ?></button>
                 </p>
             </form>
-        </div>
-    <?php endif; ?>
+        <?php endif; ?>
+    </div>
 </div>

templates/admin/offerings.php

@@ -45,7 +45,7 @@ if ($editing && null !== $editing->termStart && null !== $editing->termEnd && $e
         <table class="form-table">
             <tr>
                 <th><label for="title"><?php esc_html_e('Title', 'unsupervised-schedular'); ?></label></th>
-                <td><input type="text" name="title" id="title" class="regular-text" required value="<?php echo esc_attr($editing->title ?? ''); ?>"></td>
+                <td><input type="text" name="title" id="title" class="regular-text" maxlength="<?php echo esc_attr((string) Offering::MAX_TITLE_LENGTH); ?>" required value="<?php echo esc_attr($editing->title ?? ''); ?>"></td>
             </tr>
             <tr>
                 <th><label for="kind"><?php esc_html_e('Kind', 'unsupervised-schedular'); ?></label></th>
@@ -85,34 +85,50 @@ if ($editing && null !== $editing->termStart && null !== $editing->termEnd && $e
                 <th><label for="billing_mode"><?php esc_html_e('Billing', 'unsupervised-schedular'); ?></label></th>
                 <td>
                     <select name="billing_mode" id="billing_mode">
-                        <option value="<?php echo esc_attr(Offering::BILLING_ONE_TIME); ?>"><?php esc_html_e('One-time at booking', 'unsupervised-schedular'); ?></option>
+                        <option value="<?php echo esc_attr(Offering::BILLING_ONE_TIME); ?>" <?php echo $editing && Offering::BILLING_ONE_TIME === $editing->billingMode ? 'selected' : ''; ?>><?php esc_html_e('One-time at booking', 'unsupervised-schedular'); ?></option>
                         <option value="<?php echo esc_attr(Offering::BILLING_FULL_TERM); ?>" <?php echo $editing && Offering::BILLING_FULL_TERM === $editing->billingMode ? 'selected' : ''; ?>><?php esc_html_e('Full term upfront', 'unsupervised-schedular'); ?></option>
+                        <option value="<?php echo esc_attr(Offering::BILLING_WEEKLY); ?>" <?php echo $editing && Offering::BILLING_WEEKLY === $editing->billingMode ? 'selected' : ''; ?>><?php esc_html_e('Weekly — due 24h before each lesson', 'unsupervised-schedular'); ?></option>
+                        <option value="<?php echo esc_attr(Offering::BILLING_MONTHLY); ?>" <?php echo $editing && Offering::BILLING_MONTHLY === $editing->billingMode ? 'selected' : ''; ?>><?php esc_html_e('Monthly — billed on the 1st for that month\'s lessons', 'unsupervised-schedular'); ?></option>
                     </select>
                 </td>
             </tr>
-            <tr>
+            <tr class="us-private-only">
                 <th><?php esc_html_e('Weekly reservation', 'unsupervised-schedular'); ?></th>
                 <td><label><input type="checkbox" name="allow_weekly" value="1" <?php echo $editing && $editing->allowWeekly ? 'checked' : ''; ?>> <?php esc_html_e('Allow weekly recurring reservation (private)', 'unsupervised-schedular'); ?></label></td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
                 <th><label for="capacity"><?php esc_html_e('Capacity', 'unsupervised-schedular'); ?></label></th>
                 <td><input type="number" name="capacity" id="capacity" min="0" step="1" value="<?php echo esc_attr((string) ($editing->capacity ?? '')); ?>"> <span class="description"><?php esc_html_e('Group classes only', 'unsupervised-schedular'); ?></span></td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
                 <th><label for="term_start"><?php esc_html_e('Start date', 'unsupervised-schedular'); ?></label></th>
                 <td>
                     <input type="date" name="term_start" id="term_start" value="<?php echo esc_attr($editing->termStart ?? ''); ?>">
                     <span class="description"><?php esc_html_e('Group classes only — date of the first class', 'unsupervised-schedular'); ?></span>
                 </td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
                 <th><label for="class_time"><?php esc_html_e('Class time', 'unsupervised-schedular'); ?></label></th>
                 <td>
                     <input type="time" name="class_time" id="class_time" value="<?php echo esc_attr(null === ($editing->classTime ?? null) ? '' : substr((string) $editing->classTime, 0, 5)); ?>">
                     <span class="description"><?php esc_html_e('Group classes only — the time each session starts. Combined with the duration to block the instructor’s availability.', 'unsupervised-schedular'); ?></span>
                 </td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
+                <th><label for="enrollment_deadline"><?php esc_html_e('Enrolment deadline', 'unsupervised-schedular'); ?></label></th>
+                <td>
+                    <input type="date" name="enrollment_deadline" id="enrollment_deadline" value="<?php echo esc_attr($editing->enrollmentDeadline ?? ''); ?>">
+                    <p class="description"><?php esc_html_e('Group classes only — the last day students may enrol. Leave blank to default to the first day of the class.', 'unsupervised-schedular'); ?></p>
+                </td>
+            </tr>
+            <tr class="us-group-only">
+                <th><label for="withdrawal_deadline"><?php esc_html_e('Withdrawal deadline', 'unsupervised-schedular'); ?></label></th>
+                <td>
+                    <input type="date" name="withdrawal_deadline" id="withdrawal_deadline" value="<?php echo esc_attr($editing->withdrawalDeadline ?? ''); ?>">
+                    <p class="description"><?php esc_html_e('Group classes only — the last day a student may withdraw themselves. A withdrawal on or before this day frees the seat and voids any pending payment without crediting the student; after it, students can no longer withdraw online. Leave blank to allow withdrawal any time.', 'unsupervised-schedular'); ?></p>
+                </td>
+            </tr>
+            <tr class="us-group-only">
                 <th><?php esc_html_e('Sessions', 'unsupervised-schedular'); ?></th>
                 <td>
                     <label><input type="radio" name="term_recurrence" value="single" <?php echo 'single' === $termRecurrence ? 'checked' : ''; ?>> <?php esc_html_e('One-off', 'unsupervised-schedular'); ?></label>
@@ -122,13 +138,13 @@ if ($editing && null !== $editing->termStart && null !== $editing->termEnd && $e
                     <p class="description"><?php esc_html_e('The end date is calculated from the start date and the number of weekly sessions.', 'unsupervised-schedular'); ?></p>
                 </td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
                 <th><label for="schedule_note"><?php esc_html_e('Schedule note', 'unsupervised-schedular'); ?></label></th>
-                <td><input type="text" name="schedule_note" id="schedule_note" class="regular-text" placeholder="<?php esc_attr_e('e.g. Tuesdays 4:00pm', 'unsupervised-schedular'); ?>" value="<?php echo esc_attr($editing->scheduleNote ?? ''); ?>"></td>
+                <td><input type="text" name="schedule_note" id="schedule_note" class="regular-text" maxlength="<?php echo esc_attr((string) Offering::MAX_SCHEDULE_NOTE_LENGTH); ?>" placeholder="<?php esc_attr_e('e.g. Tuesdays 4:00pm', 'unsupervised-schedular'); ?>" value="<?php echo esc_attr($editing->scheduleNote ?? ''); ?>"></td>
             </tr>
             <tr>
                 <th><label for="etransfer_email"><?php esc_html_e('E-transfer email', 'unsupervised-schedular'); ?></label></th>
-                <td><input type="email" name="etransfer_email" id="etransfer_email" class="regular-text" placeholder="<?php esc_attr_e('Overrides the studio default', 'unsupervised-schedular'); ?>" value="<?php echo esc_attr($editing->etransferEmail ?? ''); ?>"></td>
+                <td><input type="email" name="etransfer_email" id="etransfer_email" class="regular-text" maxlength="<?php echo esc_attr((string) Offering::MAX_ETRANSFER_EMAIL_LENGTH); ?>" placeholder="<?php esc_attr_e('Overrides the studio default', 'unsupervised-schedular'); ?>" value="<?php echo esc_attr($editing->etransferEmail ?? ''); ?>"></td>
             </tr>
             <tr>
                 <th><label for="cancellation_cutoff_hours"><?php esc_html_e('Cancellation cutoff (hours)', 'unsupervised-schedular'); ?></label></th>
@@ -137,7 +153,7 @@ if ($editing && null !== $editing->termStart && null !== $editing->termEnd && $e
                     <p class="description"><?php esc_html_e('How many hours before a lesson a student may still cancel it. Leave blank to use the studio default; 0 lets students cancel any time.', 'unsupervised-schedular'); ?></p>
                 </td>
             </tr>
-            <tr>
+            <tr class="us-group-only">
                 <th><?php esc_html_e('Invite only', 'unsupervised-schedular'); ?></th>
                 <td>
                     <label><input type="checkbox" name="invite_only" value="1" <?php echo $editing && $editing->isInviteOnly() ? 'checked' : ''; ?>> <?php esc_html_e('Hide from the booking list — students join by invitation only (group classes)', 'unsupervised-schedular'); ?></label>
@@ -155,6 +171,25 @@ if ($editing && null !== $editing->termStart && null !== $editing->termEnd && $e
         <?php endif; ?>
     </form>
 
+    <?php // Progressive enhancement: only show the fields relevant to the chosen
+        // kind. Without JS every row stays visible (the pre-toggle behaviour), so
+        // the form is fully usable either way. ?>
+    <script>
+        (function () {
+            var kind = document.getElementById('kind');
+            if (!kind) return;
+            var groupOnly = document.querySelectorAll('.us-group-only');
+            var privateOnly = document.querySelectorAll('.us-private-only');
+            function sync() {
+                var isGroup = kind.value === '<?php echo esc_js(Offering::KIND_GROUP_CLASS); ?>';
+                groupOnly.forEach(function (row) { row.style.display = isGroup ? '' : 'none'; });
+                privateOnly.forEach(function (row) { row.style.display = isGroup ? 'none' : ''; });
+            }
+            kind.addEventListener('change', sync);
+            sync();
+        }());
+    </script>
+
     <h2><?php esc_html_e('Current Offerings', 'unsupervised-schedular'); ?></h2>
 
     <?php if (empty($offerings)) : ?>

templates/admin/payments.php

@@ -5,13 +5,13 @@ if (! defined('ABSPATH')) {
     exit;
 }
 
-/** @var list<array{id: int, student: string, amount: string, method: string, for: string, etransfer_email: string}> $rows */
+/** @var list<array{reference: string, is_group: bool, total: string, rows: list<array{id: int, student: string, amount: string, method: string, for: string, etransfer_email: string}>}> $groups */
 ?>
 <div class="wrap">
     <h1><?php esc_html_e('Payments', 'unsupervised-schedular'); ?></h1>
-    <p class="description"><?php esc_html_e('Pending payments awaiting confirmation. Marking one received confirms the booking and emails a receipt. You can correct the e-transfer email here if the student sent it elsewhere.', 'unsupervised-schedular'); ?></p>
+    <p class="description"><?php esc_html_e('Pending payments awaiting confirmation. Marking one received confirms the booking and emails a receipt. You can correct the e-transfer email here if the student sent it elsewhere. Payments billed together on one notice are grouped under a reference — a single lump-sum e-transfer covers every payment in the group.', 'unsupervised-schedular'); ?></p>
 
-    <?php if (empty($rows)) : ?>
+    <?php if (empty($groups)) : ?>
         <p><?php esc_html_e('No pending payments.', 'unsupervised-schedular'); ?></p>
     <?php else : ?>
         <table class="wp-list-table widefat fixed striped">
@@ -26,24 +26,41 @@ if (! defined('ABSPATH')) {
                 </tr>
             </thead>
             <tbody>
-                <?php foreach ($rows as $row) : ?>
-                    <tr>
-                        <form method="post">
-                            <?php wp_nonce_field('usc_payment_action'); ?>
-                            <input type="hidden" name="usc_action" value="mark_paid">
-                            <input type="hidden" name="payment_id" value="<?php echo esc_attr((string) $row['id']); ?>">
-                            <td><?php echo esc_html($row['student']); ?></td>
-                            <td><?php echo esc_html($row['for']); ?></td>
-                            <td><?php echo esc_html($row['amount']); ?></td>
-                            <td><?php echo esc_html($row['method']); ?></td>
-                            <td><input type="email" name="etransfer_email" class="regular-text" value="<?php echo esc_attr($row['etransfer_email']); ?>"></td>
-                            <td>
-                                <button type="submit" class="button button-small button-primary">
-                                    <?php esc_html_e('Mark received', 'unsupervised-schedular'); ?>
-                                </button>
+                <?php foreach ($groups as $group) : ?>
+                    <?php if ($group['is_group']) : ?>
+                        <tr>
+                            <td colspan="6" style="background:#f0f6fc;">
+                                <?php
+                                printf(
+                                    /* translators: 1: notice reference code, 2: lump-sum total, 3: number of payments. */
+                                    esc_html__('Grouped notice %1$s — one lump-sum e-transfer of %2$s covers the %3$d payments below.', 'unsupervised-schedular'),
+                                    '<strong>' . esc_html($group['reference']) . '</strong>',
+                                    '<strong>' . esc_html($group['total']) . '</strong>',
+                                    count($group['rows'])
+                                );
+                                ?>
                             </td>
-                        </form>
-                    </tr>
+                        </tr>
+                    <?php endif; ?>
+                    <?php foreach ($group['rows'] as $row) : ?>
+                        <tr>
+                            <form method="post">
+                                <?php wp_nonce_field('usc_payment_action'); ?>
+                                <input type="hidden" name="usc_action" value="mark_paid">
+                                <input type="hidden" name="payment_id" value="<?php echo esc_attr((string) $row['id']); ?>">
+                                <td><?php echo esc_html($row['student']); ?></td>
+                                <td><?php echo esc_html($row['for']); ?></td>
+                                <td><?php echo esc_html($row['amount']); ?></td>
+                                <td><?php echo esc_html($row['method']); ?></td>
+                                <td><input type="email" name="etransfer_email" class="regular-text" value="<?php echo esc_attr($row['etransfer_email']); ?>"></td>
+                                <td>
+                                    <button type="submit" class="button button-small button-primary">
+                                        <?php esc_html_e('Mark received', 'unsupervised-schedular'); ?>
+                                    </button>
+                                </td>
+                            </form>
+                        </tr>
+                    <?php endforeach; ?>
                 <?php endforeach; ?>
             </tbody>
         </table>

templates/admin/policies.php

@@ -12,11 +12,17 @@ if (! defined('ABSPATH')) {
  * @var list<\Unsupervised\Schedular\Policy\Policy>        $policyList
  * @var \Unsupervised\Schedular\Policy\Policy|null         $selectedPolicy
  * @var list<\Unsupervised\Schedular\Policy\PolicyVersion>|null $policyVersions
+ * @var \Unsupervised\Schedular\Policy\PolicyVersion|null  $viewedVersion  Version opened in the viewer, if any.
+ * @var string                                            $notice         Status message from the last save.
  */
 ?>
 <div class="wrap">
     <h1><?php esc_html_e('Policies', 'unsupervised-schedular'); ?></h1>
 
+    <?php if ('' !== $notice) : ?>
+        <div class="notice notice-success is-dismissible"><p><?php echo esc_html($notice); ?></p></div>
+    <?php endif; ?>
+
     <h2><?php esc_html_e('Add Policy', 'unsupervised-schedular'); ?></h2>
     <form method="post">
         <?php wp_nonce_field('usc_policy_action'); ?>
@@ -24,12 +30,12 @@ if (! defined('ABSPATH')) {
         <table class="form-table">
             <tr>
                 <th><label for="title"><?php esc_html_e('Title', 'unsupervised-schedular'); ?></label></th>
-                <td><input type="text" name="title" id="title" class="regular-text" required></td>
+                <td><input type="text" name="title" id="title" class="regular-text" maxlength="<?php echo esc_attr((string) Policy::MAX_TITLE_LENGTH); ?>" required></td>
             </tr>
             <tr>
                 <th><label for="slug"><?php esc_html_e('Slug', 'unsupervised-schedular'); ?></label></th>
                 <td>
-                    <input type="text" name="slug" id="slug" class="regular-text" placeholder="<?php esc_attr_e('e.g. cancellation (defaults from title)', 'unsupervised-schedular'); ?>">
+                    <input type="text" name="slug" id="slug" class="regular-text" maxlength="<?php echo esc_attr((string) Policy::MAX_SLUG_LENGTH); ?>" placeholder="<?php esc_attr_e('e.g. cancellation (defaults from title)', 'unsupervised-schedular'); ?>">
                 </td>
             </tr>
             <tr>
@@ -98,6 +104,18 @@ if (! defined('ABSPATH')) {
                             <td><?php echo esc_html($version->status); ?></td>
                             <td><?php echo $version->publishedAt ? esc_html($version->publishedAt) : '&mdash;'; ?></td>
                             <td>
+                                <a href="<?php echo esc_url(
+                                    add_query_arg(
+                                        [
+                                            'page'      => 'us-policies',
+                                            'policy_id' => (string) $selectedPolicy->id,
+                                            'version_id' => (string) $version->id,
+                                        ],
+                                        admin_url('admin.php')
+                                    )
+                                ); ?>" class="button button-small">
+                                    <?php esc_html_e('View', 'unsupervised-schedular'); ?>
+                                </a>
                                 <?php if (PolicyVersion::STATUS_PUBLISHED !== $version->status) : ?>
                                     <form method="post" style="display:inline;">
                                         <?php wp_nonce_field('usc_policy_action'); ?>
@@ -117,5 +135,48 @@ if (! defined('ABSPATH')) {
                 </tbody>
             </table>
         <?php endif; ?>
+
+        <?php if (null !== $viewedVersion) : ?>
+            <hr>
+            <h3>
+                <?php echo esc_html(sprintf(
+                    /* translators: 1: version number, 2: version status. */
+                    __('Version %1$d (%2$s)', 'unsupervised-schedular'),
+                    $viewedVersion->versionNumber,
+                    $viewedVersion->status
+                )); ?>
+            </h3>
+
+            <?php // Rendered exactly as the booking and signup gates render it, so this doubles as a preview. ?>
+            <div class="us-policy-version-body" style="background:#fff;border:1px solid #c3c4c7;padding:0 1em;max-width:50em;overflow-wrap:break-word;">
+                <?php echo wp_kses_post($viewedVersion->bodyHtml()); ?>
+            </div>
+
+            <?php $editingDraft = PolicyVersion::STATUS_DRAFT === $viewedVersion->status; ?>
+            <h4><?php esc_html_e('Edit', 'unsupervised-schedular'); ?></h4>
+            <p class="description">
+                <?php
+                echo esc_html(
+                    $editingDraft
+                        ? __('This version is still a draft, so your changes are saved to it directly.', 'unsupervised-schedular')
+                        : __('This version has been published, so saving an edit creates a new draft version from this text and leaves the published one untouched.', 'unsupervised-schedular')
+                );
+                ?>
+            </p>
+            <form method="post">
+                <?php wp_nonce_field('usc_policy_action'); ?>
+                <input type="hidden" name="usc_action" value="edit_version">
+                <input type="hidden" name="policy_id" value="<?php echo esc_attr((string) $selectedPolicy->id); ?>">
+                <input type="hidden" name="version_id" value="<?php echo esc_attr((string) $viewedVersion->id); ?>">
+                <textarea name="body" rows="12" class="large-text"><?php echo esc_textarea((string) $viewedVersion->body); ?></textarea>
+                <?php
+                submit_button(
+                    $editingDraft
+                        ? esc_html__('Save Draft', 'unsupervised-schedular')
+                        : esc_html__('Save as New Draft', 'unsupervised-schedular')
+                );
+                ?>
+            </form>
+        <?php endif; ?>
     <?php endif; ?>
 </div>

templates/admin/questions.php

@@ -53,7 +53,7 @@ if (! defined('ABSPATH')) {
             <table class="form-table">
                 <tr>
                     <th><label for="label"><?php esc_html_e('Question', 'unsupervised-schedular'); ?></label></th>
-                    <td><input type="text" name="label" id="label" class="regular-text" required></td>
+                    <td><input type="text" name="label" id="label" class="regular-text" maxlength="<?php echo esc_attr((string) Question::MAX_LABEL_LENGTH); ?>" required></td>
                 </tr>
                 <tr>
                     <th><label for="field_type"><?php esc_html_e('Field type', 'unsupervised-schedular'); ?></label></th>

templates/admin/student-detail.php

@@ -14,6 +14,9 @@ if (! defined('ABSPATH')) {
  * @var list<array{question: string, answer: string, required: bool}> $registrationInfo
  * @var list<array{question: string, answer: string, context: string}> $intake
  * @var list<array{created_at: string, context: string, method: string, status: string, amount: float, tax_amount: float, total: float, currency: string, receipt: string}> $payments
+ * @var list<array{created_at: string, amount: float, remaining: float, currency: string, reason: string, status: string}> $credits
+ * @var float  $creditBalance
+ * @var string $creditCurrency
  * @var string $backUrl
  * @var bool   $canBilling
  * @var string $billingOverride
@@ -241,6 +244,42 @@ $renderLessons = static function (array $rows, bool $withActions = false): void
     <?php endif; ?>
 
     <?php if ($canBilling) : ?>
+        <h2><?php esc_html_e('Account credit', 'unsupervised-schedular'); ?></h2>
+        <p>
+            <?php
+            printf(
+                /* translators: %s: available credit balance, e.g. "45.00 CAD" */
+                esc_html__('Available balance: %s', 'unsupervised-schedular'),
+                '<strong>' . esc_html(number_format_i18n($creditBalance, 2) . ' ' . $creditCurrency) . '</strong>'
+            );
+            ?>
+            <span class="description"><?php esc_html_e('Credit from cancelled paid lessons is applied automatically to upcoming scheduled billing.', 'unsupervised-schedular'); ?></span>
+        </p>
+        <?php if (! empty($credits)) : ?>
+            <table class="wp-list-table widefat fixed striped">
+                <thead>
+                    <tr>
+                        <th><?php esc_html_e('Date', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Reason', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Amount', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Remaining', 'unsupervised-schedular'); ?></th>
+                        <th><?php esc_html_e('Status', 'unsupervised-schedular'); ?></th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php foreach ($credits as $credit) : ?>
+                        <tr>
+                            <td><?php echo esc_html($credit['created_at'] !== '' ? (string) mysql2date('M j, Y g:i A', $credit['created_at']) : '—'); ?></td>
+                            <td><?php echo esc_html($credit['reason']); ?></td>
+                            <td><?php echo esc_html(number_format_i18n($credit['amount'], 2) . ' ' . $credit['currency']); ?></td>
+                            <td><?php echo esc_html(number_format_i18n($credit['remaining'], 2) . ' ' . $credit['currency']); ?></td>
+                            <td><?php echo esc_html($credit['status']); ?></td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        <?php endif; ?>
+
         <h2><?php esc_html_e('Payment history', 'unsupervised-schedular'); ?></h2>
         <?php if (empty($payments)) : ?>
             <p><?php esc_html_e('None.', 'unsupervised-schedular'); ?></p>

templates/frontend/booking-page.php

@@ -4,14 +4,23 @@ declare(strict_types=1);
 if (! defined('ABSPATH')) {
     exit;
 }
+
+/** @var int $lessonTypeId Offering id when the calendar is pinned to one lesson type; 0 for every type. */
+/** @var bool $showTypeFilter Whether the "Show Only" lesson-type filter is offered. */
+/** @var bool $showBooking Whether the booking calendar is part of this embed. */
+/** @var bool $showUpcoming Whether the student's upcoming-lessons panel is part of this embed. */
 ?>
-<div id="us-booking-app" data-nonce="<?php echo esc_attr(wp_create_nonce('wp_rest')); ?>">
+<div id="us-booking-app" data-nonce="<?php echo esc_attr(wp_create_nonce('wp_rest')); ?>"<?php echo $lessonTypeId > 0 ? ' data-lesson-type="' . esc_attr((string) $lessonTypeId) . '"' : ''; ?><?php echo $showTypeFilter ? '' : ' data-type-filter="0"'; ?>>
+    <?php if ($showUpcoming) : ?>
     <div id="us-my-lessons"></div>
+    <?php endif; ?>
+    <?php if ($showBooking) : ?>
     <div id="us-slot-list">
         <p><?php esc_html_e('Loading available slots…', 'unsupervised-schedular'); ?></p>
     </div>
     <div id="us-booking-confirmation" style="display:none;">
         <p><?php esc_html_e('Your lesson has been booked. The instructor will confirm shortly.', 'unsupervised-schedular'); ?></p>
     </div>
+    <?php endif; ?>
     <div id="us-booking-error" style="display:none;" role="alert"></div>
 </div>

templates/frontend/register-page.php

@@ -12,8 +12,9 @@ if (! defined('ABSPATH')) {
  * @var bool   $inviteValid Whether $invite can still be redeemed — only then is the email fixed.
  * @var string $token Raw invite token from the request (only its hash is stored).
  * @var bool   $canRegister
+ * @var string $inviteOnlyMessage Text shown when registration is closed and no valid invite is present.
  * @var bool   $open   Whether open (self-approval) registration is enabled.
- * @var string $successType '' | 'invite' (created + logged in) | 'confirm' (check email) | 'confirm_group' (check email; auto-approved on confirm).
+ * @var string $successType '' | 'confirm' (check email) | 'confirm_group' (check email; auto-approved on confirm). The invited-student success is rendered by RegistrationPage::render() itself, which returns before this template for logged-in visitors.
  * @var string $confirmResult '' | '1' (email confirmed, awaiting approval) | 'ready' (confirmed + auto-approved) | 'expired'.
  * @var string $loginUrl Where the post-confirmation sign-in link points.
  * @var string $error
@@ -56,9 +57,7 @@ $renderQuestionField = static function (Question $question): void {
 };
 ?>
 <div class="us-register-form">
-    <?php if ($successType === 'invite') : ?>
-        <p class="us-success"><?php esc_html_e('Your account has been created and you are now logged in.', 'unsupervised-schedular'); ?></p>
-    <?php elseif ($successType === 'confirm') : ?>
+    <?php if ($successType === 'confirm') : ?>
         <p class="us-success"><?php esc_html_e('Your account has been created. Check your email for a link to confirm your address — once you do, a studio admin will review and approve your account.', 'unsupervised-schedular'); ?></p>
     <?php elseif ($successType === 'confirm_group') : ?>
         <p class="us-success"><?php esc_html_e('Your account has been created. Check your email for a link to confirm your address — once you do, your account is ready to use.', 'unsupervised-schedular'); ?></p>
@@ -74,7 +73,7 @@ $renderQuestionField = static function (Question $question): void {
         <?php endif; ?>
 
         <?php if (! $canRegister) : ?>
-            <p><?php esc_html_e('Registration is by invitation only. Please use the link from your invitation email, or contact the studio.', 'unsupervised-schedular'); ?></p>
+            <p><?php echo esc_html($inviteOnlyMessage); ?></p>
         <?php else : ?>
             <?php if ($error !== '') : ?>
                 <p class="us-error" role="alert"><?php echo esc_html($error); ?></p>
@@ -109,7 +108,7 @@ $renderQuestionField = static function (Question $question): void {
                             <?php foreach ($policyForms as $form) : ?>
                                 <div class="us-policy">
                                     <h4><?php echo esc_html($form['policy']->title); ?></h4>
-                                    <div class="us-policy-body"><?php echo wp_kses_post((string) $form['version']->body); ?></div>
+                                    <div class="us-policy-body"><?php echo wp_kses_post($form['version']->bodyHtml()); ?></div>
                                     <label>
                                         <input type="checkbox" name="accept[]" value="<?php echo esc_attr((string) $form['version']->id); ?>" required>
                                         <?php

tests/Unit/Auth/RegistrationPageTest.php

@@ -37,6 +37,8 @@ class RegistrationPageTest extends TestCase
         Functions\when('sanitize_email')->alias(static fn ($v) => $v);
         Functions\when('absint')->alias(static fn ($v) => (int) $v);
         Functions\when('current_time')->justReturn('2024-01-01 00:00:00');
+        Functions\when('wp_enqueue_style')->justReturn(null);
+        Functions\when('wp_enqueue_script')->justReturn(null);
 
         $invites   = Mockery::mock(InviteRepository::class);
         $policies  = Mockery::mock(PolicyRepository::class);
@@ -59,11 +61,14 @@ class RegistrationPageTest extends TestCase
             'settings'  => Mockery::mock(StudioSettings::class),
         ];
 
+        $this->ctx['versions']    = Mockery::mock(PolicyVersionRepository::class);
+        $this->ctx['acceptances'] = Mockery::mock(AcceptanceRepository::class);
+
         $this->ctx['page'] = new RegistrationPage(
             $invites,
             $policies,
-            Mockery::mock(PolicyVersionRepository::class),
-            Mockery::mock(AcceptanceRepository::class),
+            $this->ctx['versions'],
+            $this->ctx['acceptances'],
             $this->ctx['settings'],
             $this->ctx['mailer'],
             $questions,
@@ -403,4 +408,196 @@ class RegistrationPageTest extends TestCase
 
         self::assertSame('invite', $this->submit($invite, false));
     }
+
+    public function testMaybeHandleSubmitLogsInInviteAndRedirects(): void
+    {
+        $_POST    = [ 'us_register' => '1', 'password' => 'password123', 'display_name' => 'Ada' ];
+        $_REQUEST = [ 'us_invite' => 'raw-token' ];
+
+        Functions\when('is_user_logged_in')->justReturn(false);
+        Functions\when('check_admin_referer')->justReturn(true);
+        Functions\when('email_exists')->justReturn(false);
+        Functions\when('wp_insert_user')->justReturn(42);
+        Functions\when('is_wp_error')->justReturn(false);
+        Functions\when('get_permalink')->justReturn('http://home.test/register/');
+        Functions\when('add_query_arg')->alias(static fn (string $k, string $v, string $u): string => $u . '?' . $k . '=' . $v);
+
+        // The cookie must be set here — during template_redirect, before output —
+        // which is the whole point of processing the submit outside render().
+        Functions\expect('wp_set_current_user')->once()->with(42);
+        Functions\expect('wp_set_auth_cookie')->once()->with(42);
+
+        $invite = new Invite(email: '[email protected]', token: 'hash', createdAt: '2024-01-01 00:00:00', id: 9);
+        $this->ctx['invites']->shouldReceive('findByToken')->once()->andReturn($invite);
+        $this->ctx['invites']->shouldReceive('markAccepted')->once();
+        $this->ctx['settings']->shouldReceive('openRegistrationEnabled')->andReturn(false);
+
+        $page = Mockery::mock(
+            RegistrationPage::class,
+            [
+                $this->ctx['invites'],
+                $this->ctx['policies'],
+                $this->ctx['versions'],
+                $this->ctx['acceptances'],
+                $this->ctx['settings'],
+                $this->ctx['mailer'],
+                $this->ctx['questions'],
+                $this->ctx['answers'],
+                $this->ctx['access'],
+            ]
+        )->makePartial()->shouldAllowMockingProtectedMethods();
+
+        $captured = '';
+        $page->shouldReceive('redirect')->once()->with(Mockery::on(static function (string $url) use (&$captured): bool {
+            $captured = $url;
+            return true;
+        }));
+
+        $page->maybeHandleSubmit();
+
+        self::assertStringContainsString('us_registered=invite', $captured);
+    }
+
+    public function testMaybeHandleSubmitStoresValidationErrorWithoutRedirecting(): void
+    {
+        // Too-short password: handleSubmit returns an error and no redirect fires.
+        $_POST = [ 'us_register' => '1', 'password' => 'short', 'display_name' => 'Ada' ];
+
+        Functions\when('is_user_logged_in')->justReturn(false);
+        Functions\when('check_admin_referer')->justReturn(true);
+        $this->ctx['settings']->shouldReceive('openRegistrationEnabled')->andReturn(true);
+
+        // A redirect would call exit; reaching the assertion proves none happened.
+        $this->ctx['page']->maybeHandleSubmit();
+
+        $error = (new \ReflectionProperty(RegistrationPage::class, 'submitError'))->getValue($this->ctx['page']);
+        self::assertNotSame('', $error);
+    }
+
+    public function testInviteSuccessRedirectShowsLoggedInWelcome(): void
+    {
+        // After the PRG redirect the student is logged in; the us_registered flag
+        // distinguishes a just-completed signup from an already-logged-in visitor.
+        $_GET = [ 'us_registered' => 'invite' ];
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+
+        $html = $this->ctx['page']->render([]);
+
+        self::assertStringContainsString('us-success', $html);
+        self::assertStringContainsString('now logged in', $html);
+        // No page chosen: the sign-in-screen fallback is useless to someone who
+        // is already signed in, so no link is offered at all.
+        self::assertStringNotContainsString('<a href', $html);
+    }
+
+    public function testInviteSuccessLinksToTheChosenPage(): void
+    {
+        $_GET = [ 'us_registered' => 'invite' ];
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+        Functions\expect('get_permalink')->once()->with(4)->andReturn('http://home.test/welcome/');
+        Functions\when('get_the_title')->justReturn('Book a Lesson');
+
+        $html = $this->ctx['page']->render([ 'loginPageId' => 4 ]);
+
+        self::assertStringContainsString('now logged in', $html);
+        self::assertStringContainsString('href="http://home.test/welcome/"', $html);
+        // The link names its destination rather than saying "your account".
+        self::assertStringContainsString('Continue to Book a Lesson', $html);
+    }
+
+    public function testContinueLinkFallsBackToGenericWordingForAnUntitledPage(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+        Functions\when('get_permalink')->justReturn('http://home.test/welcome/');
+        Functions\when('get_the_title')->justReturn('  ');
+
+        // An untitled page must not produce a link reading "Continue to ".
+        $html = $this->ctx['page']->render([ 'loginPageId' => 4 ]);
+
+        self::assertStringContainsString('Continue to your account', $html);
+        self::assertStringContainsString('href="http://home.test/welcome/"', $html);
+    }
+
+    public function testAlreadyLoggedInVisitorIsLinkedToTheChosenPage(): void
+    {
+        // No us_registered flag: someone who simply happens to be signed in and
+        // lands on the registration page. They still need a way onward.
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+        Functions\expect('get_permalink')->once()->with(4)->andReturn('http://home.test/welcome/');
+        Functions\when('get_the_title')->justReturn('Book a Lesson');
+
+        $html = $this->ctx['page']->render([ 'loginPageId' => 4 ]);
+
+        self::assertStringContainsString('already have an account', $html);
+        self::assertStringContainsString('href="http://home.test/welcome/"', $html);
+        self::assertStringContainsString('Continue to Book a Lesson', $html);
+        // Not the just-registered message — that branch needs its own flag.
+        self::assertStringNotContainsString('us-success', $html);
+    }
+
+    public function testAlreadyLoggedInVisitorGetsNoLinkWithoutAChosenPage(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+        Functions\when('get_permalink')->justReturn(false);
+
+        // A deleted page resolves to false, which must not become a broken link.
+        $html = $this->ctx['page']->render([ 'loginPageId' => 4 ]);
+
+        self::assertStringContainsString('already have an account', $html);
+        self::assertStringNotContainsString('<a href', $html);
+
+        self::assertStringNotContainsString('<a href', $this->ctx['page']->render([]));
+    }
+
+    public function testContinueUrlIsNullWithoutAResolvablePage(): void
+    {
+        Functions\when('get_permalink')->justReturn(false);
+
+        self::assertNull($this->ctx['page']->continueUrl(0));
+        self::assertNull($this->ctx['page']->continueUrl(4));
+    }
+
+    public function testIsRegistrationCompleteOnlyForFinishedStates(): void
+    {
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+
+        // [ query args, logged in, finished ]
+        $cases = [
+            'invited student, now logged in'  => [['us_registered' => 'invite'], true, true],
+            'invited student, not logged in'  => [['us_registered' => 'invite'], false, false],
+            'email confirmed, ready'          => [['us_confirmed' => 'ready'], false, true],
+            'email confirmed, pending review' => [['us_confirmed' => '1'], false, true],
+            'confirmation link expired'       => [['us_confirmed' => 'expired'], false, false],
+            'awaiting email confirmation'     => [['us_registered' => 'confirm'], false, false],
+            'group signup awaiting confirm'   => [['us_registered' => 'confirm_group'], false, false],
+            'plain page view'                 => [[], false, false],
+        ];
+
+        foreach ($cases as $label => [$get, $loggedIn, $expected]) {
+            $_GET = $get;
+            Functions\when('is_user_logged_in')->justReturn($loggedIn);
+
+            self::assertSame($expected, $this->ctx['page']->isRegistrationComplete(), $label);
+        }
+    }
+
+    public function testInviteOnlyMessageCanBeCustomised(): void
+    {
+        // Closed registration and no invite → the invitation-only gate shows.
+        Functions\when('is_user_logged_in')->justReturn(false);
+        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
+        Functions\when('wp_login_url')->justReturn('http://home.test/wp-login.php');
+        Functions\when('wp_nonce_field')->justReturn('');
+        $this->ctx['settings']->shouldReceive('openRegistrationEnabled')->andReturn(false);
+
+        $html = $this->ctx['page']->render([ 'inviteOnlyMessage' => 'Ask the front desk for a link.' ]);
+
+        self::assertStringContainsString('Ask the front desk for a link.', $html);
+        self::assertStringNotContainsString('by invitation only', $html);
+    }
 }

tests/Unit/Auth/StudentActionsTest.php

@@ -42,6 +42,10 @@ class StudentActionsTest extends TestCase
         $this->bookings->shouldReceive('updateStatus')->once()->with(12, Lesson::STATUS_CANCELLED)->andReturn(true);
         $this->availability->shouldReceive('release')->once()->with(7)->andReturn(true);
         $this->payments->shouldReceive('voidPending')->once()->with(40);
+        // A paid lesson is credited; the cancelled lesson value object is handed over.
+        $this->payments->shouldReceive('creditForCancelledLesson')
+            ->once()
+            ->with(Mockery::on(static fn (Lesson $l): bool => $l->id === 12 && $l->paymentId === 40));
 
         self::assertTrue($this->actions->cancelLesson(12, 5));
     }

tests/Unit/Auth/StudentAdminGuardTest.php

@@ -0,0 +1,88 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Auth;
+
+use Brain\Monkey\Functions;
+use Unsupervised\Schedular\Auth\RoleManager;
+use Unsupervised\Schedular\Auth\StudentAdminGuard;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class StudentAdminGuardTest extends TestCase
+{
+    private StudentAdminGuard $guard;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->guard = new StudentAdminGuard();
+        Functions\when('wp_doing_ajax')->justReturn(false);
+    }
+
+    /**
+     * @param list<string> $held Capabilities the user is treated as holding.
+     */
+    private function stubUser(bool $loggedIn, array $held = []): void
+    {
+        Functions\when('is_user_logged_in')->justReturn($loggedIn);
+        Functions\when('current_user_can')->alias(static fn (string $cap): bool => in_array($cap, $held, true));
+    }
+
+    public function testBlocksStudentWithNoBackOfficeCapabilities(): void
+    {
+        // A student holds only front-end capabilities.
+        $this->stubUser(true, [RoleManager::CAP_BOOK_LESSON, RoleManager::CAP_VIEW_LESSONS]);
+
+        self::assertTrue($this->guard->shouldBlockAdminAccess());
+    }
+
+    public function testAllowsInstructor(): void
+    {
+        $this->stubUser(true, [RoleManager::CAP_MANAGE_AVAILABILITY]);
+
+        self::assertFalse($this->guard->shouldBlockAdminAccess());
+    }
+
+    public function testAllowsAdministrator(): void
+    {
+        $this->stubUser(true, ['manage_options']);
+
+        self::assertFalse($this->guard->shouldBlockAdminAccess());
+    }
+
+    public function testDoesNotBlockLoggedOutRequests(): void
+    {
+        $this->stubUser(false);
+
+        self::assertFalse($this->guard->shouldBlockAdminAccess());
+    }
+
+    public function testDoesNotBlockAjaxRequests(): void
+    {
+        Functions\when('wp_doing_ajax')->justReturn(true);
+        $this->stubUser(true, [RoleManager::CAP_BOOK_LESSON]);
+
+        self::assertFalse($this->guard->shouldBlockAdminAccess());
+    }
+
+    public function testHidesAdminBarForStudent(): void
+    {
+        $this->stubUser(true, [RoleManager::CAP_BOOK_LESSON]);
+
+        self::assertFalse($this->guard->hideAdminBar(true));
+    }
+
+    public function testKeepsAdminBarForInstructor(): void
+    {
+        $this->stubUser(true, [RoleManager::CAP_MANAGE_AVAILABILITY]);
+
+        self::assertTrue($this->guard->hideAdminBar(true));
+    }
+
+    public function testLeavesAdminBarUntouchedForLoggedOutVisitor(): void
+    {
+        $this->stubUser(false);
+
+        self::assertFalse($this->guard->hideAdminBar(false));
+    }
+}

tests/Unit/Auth/StudentHistoryTest.php

@@ -5,6 +5,8 @@ namespace Unsupervised\Schedular\Tests\Unit\Auth;
 
 use Mockery;
 use Unsupervised\Schedular\Auth\StudentHistory;
+use Unsupervised\Schedular\Payment\Credit;
+use Unsupervised\Schedular\Payment\CreditRepository;
 use Unsupervised\Schedular\Payment\Payment;
 use Unsupervised\Schedular\Payment\PaymentRepository;
 use Unsupervised\Schedular\Policy\AcceptanceRepository;
@@ -27,6 +29,7 @@ class StudentHistoryTest extends TestCase
     private AnswerRepository&Mockery\MockInterface $answers;
     private QuestionRepository&Mockery\MockInterface $questions;
     private PaymentRepository&Mockery\MockInterface $payments;
+    private CreditRepository&Mockery\MockInterface $credits;
     private StudentHistory $history;
 
     protected function setUp(): void
@@ -39,6 +42,7 @@ class StudentHistoryTest extends TestCase
         $this->answers        = Mockery::mock(AnswerRepository::class);
         $this->questions      = Mockery::mock(QuestionRepository::class);
         $this->payments       = Mockery::mock(PaymentRepository::class);
+        $this->credits        = Mockery::mock(CreditRepository::class);
 
         $this->history = new StudentHistory(
             $this->acceptances,
@@ -46,7 +50,8 @@ class StudentHistoryTest extends TestCase
             $this->policyVersions,
             $this->answers,
             $this->questions,
-            $this->payments
+            $this->payments,
+            $this->credits
         );
     }
 
@@ -215,4 +220,34 @@ class StudentHistoryTest extends TestCase
         self::assertSame('Enrolment #3', $rows[0]['context']);
         self::assertSame('—', $rows[0]['receipt']);
     }
+
+    public function testCreditBalanceDelegatesToRepository(): void
+    {
+        $this->credits->shouldReceive('availableBalance')->once()->with(5)->andReturn(45.0);
+
+        self::assertSame(45.0, $this->history->creditBalance(5));
+    }
+
+    public function testCreditsBuildDisplayRows(): void
+    {
+        $this->credits->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new Credit(5, 33.00, 13.00, 'CAD', 12, 77, 'Credit for cancelled lesson #77', Credit::STATUS_AVAILABLE, '2026-07-01 09:00:00', id: 300),
+        ]);
+
+        $rows = $this->history->credits(5);
+
+        self::assertSame(
+            [
+                [
+                    'created_at' => '2026-07-01 09:00:00',
+                    'amount'     => 33.00,
+                    'remaining'  => 13.00,
+                    'currency'   => 'CAD',
+                    'reason'     => 'Credit for cancelled lesson #77',
+                    'status'     => Credit::STATUS_AVAILABLE,
+                ],
+            ],
+            $rows
+        );
+    }
 }

tests/Unit/BlockPreviewTest.php

@@ -5,6 +5,7 @@ namespace Unsupervised\Schedular\Tests\Unit;
 
 use Brain\Monkey\Functions;
 use Unsupervised\Schedular\BlockPreview;
+use Unsupervised\Schedular\Booking\BookingPage;
 
 class BlockPreviewTest extends TestCase
 {
@@ -18,6 +19,25 @@ class BlockPreviewTest extends TestCase
         self::assertStringContainsString('class="us-slot"', $html);
         self::assertStringContainsString('class="us-book-btn" disabled', $html);
         self::assertStringContainsString('us-editor-note', $html);
+        self::assertStringContainsString('id="us-my-lessons"', $html);
+    }
+
+    public function testBookingOnlyPreviewLeavesOutTheUpcomingLessons(): void
+    {
+        $html = BlockPreview::booking(BookingPage::MODE_BOOKING);
+
+        self::assertStringContainsString('id="us-slot-list"', $html);
+        self::assertStringNotContainsString('us-my-lessons', $html);
+    }
+
+    public function testUpcomingOnlyPreviewLeavesOutTheCalendar(): void
+    {
+        $html = BlockPreview::booking(BookingPage::MODE_UPCOMING);
+
+        self::assertStringContainsString('id="us-my-lessons"', $html);
+        self::assertStringContainsString('Your upcoming lessons', $html);
+        self::assertStringNotContainsString('us-slot-list', $html);
+        self::assertStringNotContainsString('us-book-btn', $html);
     }
 
     public function testGroupClassesPreviewMirrorsTheLiveMarkup(): void
@@ -29,6 +49,17 @@ class BlockPreviewTest extends TestCase
         self::assertStringContainsString('class="us-class"', $html);
         self::assertStringContainsString('class="us-enrol-btn" disabled', $html);
         self::assertStringContainsString('us-editor-note', $html);
+        self::assertStringContainsString('A sample class shown so the page can be styled.', $html);
+    }
+
+    public function testSingleClassGroupPreviewDropsTheDescriptionButKeepsScheduleAndEnrolment(): void
+    {
+        $html = BlockPreview::groupClasses(true);
+
+        self::assertStringNotContainsString('A sample class shown so the page can be styled.', $html);
+        self::assertStringContainsString('class="us-class-when"', $html);
+        self::assertStringContainsString('class="us-enrol-deadline"', $html);
+        self::assertStringContainsString('class="us-enrol-btn" disabled', $html);
     }
 
     public function testLoginPreviewIncludesTheRealLoginTemplate(): void

tests/Unit/BlockRegistrarTest.php

@@ -52,6 +52,12 @@ class BlockRegistrarTest extends TestCase
         $this->registrationPage = Mockery::mock(RegistrationPage::class);
         $this->groupClassPage   = Mockery::mock(GroupClassPage::class);
 
+        // Most requests are not a just-finished registration; the tests that
+        // exercise that path override this.
+        $this->registrationPage->shouldReceive('isRegistrationComplete')
+            ->andReturn(false)
+            ->byDefault();
+
         $this->registrar = new TestableBlockRegistrar(
             $this->bookingPage,
             $this->loginPage,
@@ -118,7 +124,7 @@ class BlockRegistrarTest extends TestCase
         // The link-target and auto-redirect options must be declared
         // server-side or the block-renderer preview rejects them.
         self::assertSame(
-            ['loginPageId', 'autoRedirect'],
+            ['loginPageId', 'autoRedirect', 'lessonTypeId', 'showTypeFilter', 'displayMode'],
             array_keys($registered['us-scheduler/booking']['attributes'])
         );
         self::assertSame(
@@ -126,7 +132,7 @@ class BlockRegistrarTest extends TestCase
             array_keys($registered['us-scheduler/student-login']['attributes'])
         );
         self::assertSame(
-            ['loginPageId'],
+            ['loginPageId', 'autoRedirect', 'inviteOnlyMessage'],
             array_keys($registered['us-scheduler/student-register']['attributes'])
         );
         self::assertSame(
@@ -179,6 +185,19 @@ class BlockRegistrarTest extends TestCase
         self::assertStringContainsString('us-group-app', $this->registrar->renderGroupClasses());
     }
 
+    public function testEditorPreviewOfAPinnedGroupClassOmitsTheDescription(): void
+    {
+        $this->registrar->preview = true;
+        $this->groupClassPage->shouldNotReceive('render');
+
+        $all    = $this->registrar->renderGroupClasses();
+        $single = $this->registrar->renderGroupClasses(['offeringId' => 12]);
+
+        self::assertStringContainsString('A sample class shown so the page can be styled.', $all);
+        self::assertStringNotContainsString('A sample class shown so the page can be styled.', $single);
+        self::assertStringContainsString('us-enrol-deadline', $single);
+    }
+
     public function testIsEditorPreviewIsFalseOutsideRestRequests(): void
     {
         // REST_REQUEST is undefined in the test process, so the real
@@ -384,6 +403,145 @@ class BlockRegistrarTest extends TestCase
         self::assertSame([], $this->registrar->redirects);
     }
 
+    public function testAutoRedirectSendsAFinishedRegistrationToTheChosenPage(): void
+    {
+        $this->stubSingularRequest(
+            30,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['autoRedirect' => true, 'loginPageId' => 4],
+                    'innerBlocks' => [],
+                ],
+            ],
+            false
+        );
+
+        $this->registrationPage->shouldReceive('isRegistrationComplete')->andReturn(true);
+        $this->registrationPage->shouldReceive('continueUrl')
+            ->once()->with(4)->andReturn('https://example.com/welcome/');
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame(['https://example.com/welcome/'], $this->registrar->redirects);
+    }
+
+    public function testAutoRedirectSendsAJustLoggedInInvitedStudentToTheChosenPage(): void
+    {
+        // The invited-student branch completes logged in, so the logged-in
+        // student-login branch must not get first claim on the request.
+        $this->stubSingularRequest(
+            30,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['autoRedirect' => true, 'loginPageId' => 4],
+                    'innerBlocks' => [],
+                ],
+            ],
+            true
+        );
+
+        $this->registrationPage->shouldReceive('isRegistrationComplete')->andReturn(true);
+        $this->registrationPage->shouldReceive('continueUrl')
+            ->once()->with(4)->andReturn('https://example.com/welcome/');
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame(['https://example.com/welcome/'], $this->registrar->redirects);
+    }
+
+    public function testNoRedirectWhenTheRegistrationIsNotFinished(): void
+    {
+        // e.g. the "check your email" step, or a validation error — the
+        // message has to be read, so the block never redirects past it.
+        $this->stubSingularRequest(
+            30,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['autoRedirect' => true, 'loginPageId' => 4],
+                    'innerBlocks' => [],
+                ],
+            ],
+            false
+        );
+
+        $this->registrationPage->shouldReceive('continueUrl')->never();
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame([], $this->registrar->redirects);
+    }
+
+    public function testNoRedirectWhenTheRegisterBlockDoesNotOptIn(): void
+    {
+        $this->stubSingularRequest(
+            30,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['loginPageId' => 4],
+                    'innerBlocks' => [],
+                ],
+            ],
+            false
+        );
+
+        $this->registrationPage->shouldReceive('isRegistrationComplete')->andReturn(true);
+        $this->registrationPage->shouldReceive('continueUrl')->never();
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame([], $this->registrar->redirects);
+    }
+
+    public function testNoRedirectWhenTheRegisterBlockHasNoPageChosen(): void
+    {
+        $this->stubSingularRequest(
+            30,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['autoRedirect' => true],
+                    'innerBlocks' => [],
+                ],
+            ],
+            false
+        );
+
+        $this->registrationPage->shouldReceive('isRegistrationComplete')->andReturn(true);
+        // No page chosen: there is no login-screen fallback to redirect to,
+        // so the student keeps the on-page confirmation instead.
+        $this->registrationPage->shouldReceive('continueUrl')->once()->with(0)->andReturnNull();
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame([], $this->registrar->redirects);
+    }
+
+    public function testNoRedirectWhenTheRegisterBlockPointsAtItsOwnPage(): void
+    {
+        $this->stubSingularRequest(
+            4,
+            [
+                [
+                    'blockName'   => 'us-scheduler/student-register',
+                    'attrs'       => ['autoRedirect' => true, 'loginPageId' => 4],
+                    'innerBlocks' => [],
+                ],
+            ],
+            false
+        );
+
+        $this->registrationPage->shouldReceive('isRegistrationComplete')->andReturn(true);
+        $this->registrationPage->shouldReceive('continueUrl')->never();
+
+        $this->registrar->maybeAutoRedirect();
+
+        self::assertSame([], $this->registrar->redirects);
+    }
+
     public function testNoRedirectOutsideSingularFrontEndRequests(): void
     {
         Functions\when('is_admin')->justReturn(false);

tests/Unit/Booking/BookingEndpointTest.php

@@ -48,6 +48,9 @@ class BookingEndpointTest extends TestCase
         $this->payments     = Mockery::mock(PaymentService::class);
         $this->settings     = Mockery::mock(StudioSettings::class);
         $this->settings->shouldReceive('cancellationCutoffHours')->andReturn(24)->byDefault();
+        // Crediting a cancelled paid lesson is exercised in dedicated tests; other
+        // cancellation paths simply allow the call.
+        $this->payments->shouldReceive('creditForCancelledLesson')->andReturn(null)->byDefault();
 
         $this->endpoint = new BookingEndpoint(
             $this->availability,
@@ -383,6 +386,80 @@ class BookingEndpointTest extends TestCase
         self::assertSame(Lesson::STATUS_PENDING, $result->get_data()['status']);
     }
 
+    public function testScheduledBillingDefersPaymentAndConfirmsLesson(): void
+    {
+        // Weekly/monthly offerings are billed later by the daily scan, not at
+        // booking: no payment is created now, and the reserved lesson is confirmed.
+        $this->availability->shouldReceive('findById')->with(10)->andReturn($this->slot(10, 3, null));
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn(
+            new Offering(instructorId: 3, kind: Offering::KIND_PRIVATE_LESSON, title: 'Lesson', price: 50.0, billingMode: Offering::BILLING_WEEKLY, id: 8)
+        );
+        $this->gate->shouldReceive('validate')->andReturn(null);
+        $this->availability->shouldReceive('claim')->with(10)->once()->andReturn(true);
+        $this->bookings->shouldReceive('insert')->once()->andReturn(77);
+        $this->gate->shouldReceive('record')->once();
+        $this->payments->shouldNotReceive('createForRegistration');
+        $this->bookings->shouldReceive('updateStatus')->with(77, Lesson::STATUS_CONFIRMED)->once()->andReturn(true);
+
+        $request = new \WP_REST_Request(['slot_id' => 10, 'offering_id' => 8]);
+        $result  = $this->endpoint->book($request);
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(Lesson::STATUS_CONFIRMED, $result->get_data()['status']);
+        self::assertNull($result->get_data()['payment']);
+    }
+
+    public function testMonthlyLessonInAlreadyBilledMonthChargesAtBooking(): void
+    {
+        // "now" is 2026-06-01; a monthly lesson booked into June (its billing 1st
+        // already reached) is an add-on and must be charged at booking, not deferred.
+        $this->availability->shouldReceive('findById')->with(10)->andReturn(
+            new AvailabilitySlot(instructorId: 3, startDt: '2026-06-20 10:00:00', endDt: '2026-06-20 11:00:00', offeringId: null, id: 10)
+        );
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn(
+            new Offering(instructorId: 3, kind: Offering::KIND_PRIVATE_LESSON, title: 'Lesson', price: 45.0, billingMode: Offering::BILLING_MONTHLY, id: 8)
+        );
+        $this->gate->shouldReceive('validate')->andReturn(null);
+        $this->availability->shouldReceive('claim')->with(10)->once()->andReturn(true);
+        $this->bookings->shouldReceive('insert')->once()->andReturn(77);
+        $this->gate->shouldReceive('record')->once();
+
+        // Charged now, for a single lesson's fee, as a normal (non-scheduled) payment.
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_LESSON, 77, 5, 3, 45.0, 'CAD', null)
+            ->andReturn(new Payment(5, 3, Payment::REG_LESSON, 77, 45.0, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PENDING, id: 12));
+        $this->bookings->shouldNotReceive('updateStatus');
+
+        $result = $this->endpoint->book(new \WP_REST_Request(['slot_id' => 10, 'offering_id' => 8]));
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(Lesson::STATUS_PENDING, $result->get_data()['status']);
+        self::assertNotNull($result->get_data()['payment']);
+    }
+
+    public function testMonthlyLessonBeforeBillingDateDefersPayment(): void
+    {
+        // "now" is 2026-06-01; a monthly lesson for July is booked before July's 1st,
+        // so it defers to the daily scan (no payment now, lesson confirmed).
+        $this->availability->shouldReceive('findById')->with(10)->andReturn($this->slot(10, 3, null));
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn(
+            new Offering(instructorId: 3, kind: Offering::KIND_PRIVATE_LESSON, title: 'Lesson', price: 45.0, billingMode: Offering::BILLING_MONTHLY, id: 8)
+        );
+        $this->gate->shouldReceive('validate')->andReturn(null);
+        $this->availability->shouldReceive('claim')->with(10)->once()->andReturn(true);
+        $this->bookings->shouldReceive('insert')->once()->andReturn(77);
+        $this->gate->shouldReceive('record')->once();
+        $this->payments->shouldNotReceive('createForRegistration');
+        $this->bookings->shouldReceive('updateStatus')->with(77, Lesson::STATUS_CONFIRMED)->once()->andReturn(true);
+
+        $result = $this->endpoint->book(new \WP_REST_Request(['slot_id' => 10, 'offering_id' => 8]));
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(Lesson::STATUS_CONFIRMED, $result->get_data()['status']);
+        self::assertNull($result->get_data()['payment']);
+    }
+
     public function testCancelByOwnerCancelsReleasesSlotAndVoidsPayment(): void
     {
         $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, status: Lesson::STATUS_PENDING, paymentId: 12, id: 77);
@@ -398,6 +475,24 @@ class BookingEndpointTest extends TestCase
         self::assertSame(Lesson::STATUS_CANCELLED, $result->get_data()['status']);
     }
 
+    public function testCancelCreditsThePaidLesson(): void
+    {
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, status: Lesson::STATUS_PENDING, paymentId: 12, id: 77);
+        $this->bookings->shouldReceive('findById')->with(77)->andReturn($lesson);
+        $this->availability->shouldReceive('findById')->with(10)->andReturn($this->slot(10, 3, null));
+        $this->bookings->shouldReceive('updateStatus')->with(77, Lesson::STATUS_CANCELLED)->once()->andReturn(true);
+        $this->availability->shouldReceive('release')->with(10)->once()->andReturn(true);
+        $this->payments->shouldReceive('voidPending')->with(12)->once();
+
+        // The cancelled lesson (the value object, so its payment_id is intact) is
+        // handed to the credit path.
+        $this->payments->shouldReceive('creditForCancelledLesson')
+            ->once()
+            ->with(Mockery::on(static fn (Lesson $l): bool => $l->id === 77 && $l->paymentId === 12));
+
+        $this->endpoint->cancel(new \WP_REST_Request(['id' => 77]));
+    }
+
     public function testCancelWithinStudioCutoffIsRejected(): void
     {
         // Now (2026-06-01 10:00) is only 24h before a slot at 2026-06-02 10:00,
@@ -544,4 +639,22 @@ class BookingEndpointTest extends TestCase
         self::assertSame('2026-07-01 10:00:00', $data[0]['start_dt']);
         self::assertSame('2026-07-01 11:00:00', $data[0]['end_dt']);
     }
+
+    public function testMyLessonsIncludesBookedOfferingName(): void
+    {
+        Functions\when('current_user_can')->justReturn(false);
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, status: Lesson::STATUS_PENDING, id: 77);
+        $this->bookings->shouldReceive('findUpcomingForStudent')->with(5)->once()->andReturn([$lesson]);
+        $this->availability->shouldReceive('findById')->with(10)->andReturn($this->slot(10, 3, 8));
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn(
+            new Offering(instructorId: 3, kind: Offering::KIND_PRIVATE_LESSON, title: 'Piano Lesson', durationMinutes: 60, id: 8)
+        );
+
+        $result = $this->endpoint->myLessons(new \WP_REST_Request([]));
+
+        $data = $result->get_data();
+        self::assertSame('Piano Lesson', $data[0]['offering_title']);
+        self::assertSame(60, $data[0]['duration_minutes']);
+    }
 }

tests/Unit/Booking/BookingPageTest.php

@@ -17,6 +17,26 @@ class BookingPageTest extends TestCase
         $this->page = new BookingPage();
     }
 
+    /**
+     * Renders the page as a logged-in, approved student — the path that
+     * includes the template and its data attributes.
+     *
+     * @param array<int|string, mixed> $atts
+     */
+    private function renderForStudent(array $atts): string
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('get_current_user_id')->justReturn(3);
+        Functions\when('get_user_meta')->justReturn('');
+        Functions\when('current_user_can')->justReturn(true);
+        Functions\when('wp_enqueue_style')->justReturn(null);
+        Functions\when('wp_enqueue_script')->justReturn(null);
+        Functions\when('wp_create_nonce')->justReturn('nonce123');
+        Functions\when('absint')->alias(static fn ($value) => abs((int) $value));
+
+        return $this->page->render($atts);
+    }
+
     public function testLoggedOutVisitorIsLinkedToTheWordPressLoginByDefault(): void
     {
         Functions\when('is_user_logged_in')->justReturn(false);
@@ -59,6 +79,85 @@ class BookingPageTest extends TestCase
         self::assertStringContainsString('href="https://example.com/login/"', $html);
     }
 
+    public function testDefaultEmbedShowsBothHalvesWithTheFilterAndNoPinnedType(): void
+    {
+        $html = $this->renderForStudent([]);
+
+        self::assertStringContainsString('id="us-booking-app"', $html);
+        self::assertStringContainsString('id="us-my-lessons"', $html);
+        self::assertStringContainsString('id="us-slot-list"', $html);
+        self::assertStringNotContainsString('data-lesson-type', $html);
+        self::assertStringNotContainsString('data-type-filter', $html);
+    }
+
+    public function testBlockLessonTypeAttributePinsASingleType(): void
+    {
+        self::assertStringContainsString(
+            'data-lesson-type="12"',
+            $this->renderForStudent(['lessonTypeId' => 12])
+        );
+    }
+
+    public function testShortcodeLessonTypeAttributePinsASingleType(): void
+    {
+        self::assertStringContainsString(
+            'data-lesson-type="7"',
+            $this->renderForStudent(['lesson_type' => '7'])
+        );
+    }
+
+    public function testGarbageLessonTypeAttributeIsIgnored(): void
+    {
+        self::assertStringNotContainsString(
+            'data-lesson-type',
+            $this->renderForStudent(['lesson_type' => 'banana'])
+        );
+    }
+
+    public function testFilterCanBeTurnedOffByBlockAndShortcodeAlike(): void
+    {
+        self::assertStringContainsString(
+            'data-type-filter="0"',
+            $this->renderForStudent(['showTypeFilter' => false])
+        );
+
+        // "no" is truthy to PHP, so the shortcode wording is matched explicitly.
+        self::assertStringContainsString(
+            'data-type-filter="0"',
+            $this->renderForStudent(['show_filter' => 'no'])
+        );
+
+        self::assertStringNotContainsString(
+            'data-type-filter',
+            $this->renderForStudent(['show_filter' => 'yes'])
+        );
+    }
+
+    public function testBookingOnlyEmbedLeavesOutTheUpcomingLessons(): void
+    {
+        $html = $this->renderForStudent(['displayMode' => 'booking']);
+
+        self::assertStringContainsString('id="us-slot-list"', $html);
+        self::assertStringNotContainsString('us-my-lessons', $html);
+    }
+
+    public function testUpcomingOnlyEmbedLeavesOutTheBookingCalendar(): void
+    {
+        $html = $this->renderForStudent(['show' => 'upcoming']);
+
+        self::assertStringContainsString('id="us-my-lessons"', $html);
+        self::assertStringNotContainsString('us-slot-list', $html);
+        self::assertStringNotContainsString('us-booking-confirmation', $html);
+    }
+
+    public function testUnknownDisplayModeShowsTheWholePage(): void
+    {
+        $html = $this->renderForStudent(['displayMode' => 'sideways']);
+
+        self::assertStringContainsString('id="us-my-lessons"', $html);
+        self::assertStringContainsString('id="us-slot-list"', $html);
+    }
+
     public function testLoginUrlFallsBackToWordPressLoginWhenThePageIsGone(): void
     {
         // The chosen page was deleted: get_permalink() returns false for it

tests/Unit/Booking/BookingRepositoryTest.php

@@ -184,6 +184,41 @@ class BookingRepositoryTest extends TestCase
         self::assertSame(15, $lessons[0]->id);
     }
 
+    public function testFindUnbilledScheduledLessonsJoinsOfferingAndFiltersUnbilled(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(
+                Mockery::pattern('/l.status != %s.*l.payment_id IS NULL.*o.billing_mode IN \( %s, %s \)/s'),
+                'wp_us_lessons',
+                'wp_us_availability',
+                'wp_us_offerings',
+                Lesson::STATUS_CANCELLED,
+                'weekly',
+                'monthly'
+            )
+            ->andReturn('SELECT ...');
+
+        $row = (object) [
+            'id'              => '15',
+            'student_id'      => '5',
+            'instructor_id'   => '3',
+            'offering_id'     => '9',
+            'start_dt'        => '2026-07-15 18:00:00',
+            'billing_mode'    => 'weekly',
+            'title'           => 'Piano',
+            'price'           => '35.00',
+            'currency'        => 'CAD',
+            'etransfer_email' => null,
+        ];
+        $this->db->shouldReceive('get_results')->andReturn([$row]);
+
+        $rows = $this->repo->findUnbilledScheduledLessons();
+
+        self::assertCount(1, $rows);
+        self::assertSame('15', $rows[0]->id);
+    }
+
     public function testCountUpcomingForStudent(): void
     {
         Functions\when('current_time')->justReturn('2026-06-08 12:00:00');

tests/Unit/Booking/LessonControllerTest.php

@@ -10,6 +10,8 @@ use Unsupervised\Schedular\Availability\AvailabilitySlot;
 use Unsupervised\Schedular\Booking\BookingRepository;
 use Unsupervised\Schedular\Booking\Lesson;
 use Unsupervised\Schedular\Booking\LessonController;
+use Unsupervised\Schedular\Booking\LessonDetail;
+use Unsupervised\Schedular\Offering\OfferingRepository;
 use Unsupervised\Schedular\Payment\PaymentRepository;
 use Unsupervised\Schedular\Tests\Unit\TestCase;
 
@@ -18,6 +20,8 @@ class LessonControllerTest extends TestCase
     private BookingRepository&Mockery\MockInterface $bookings;
     private PaymentRepository&Mockery\MockInterface $payments;
     private AvailabilityRepository&Mockery\MockInterface $availability;
+    private OfferingRepository&Mockery\MockInterface $offerings;
+    private LessonDetail&Mockery\MockInterface $detail;
     private LessonController $controller;
 
     protected function setUp(): void
@@ -27,7 +31,9 @@ class LessonControllerTest extends TestCase
         $this->bookings     = Mockery::mock(BookingRepository::class);
         $this->payments     = Mockery::mock(PaymentRepository::class);
         $this->availability = Mockery::mock(AvailabilityRepository::class);
-        $this->controller   = new LessonController($this->bookings, $this->payments, $this->availability);
+        $this->offerings    = Mockery::mock(OfferingRepository::class);
+        $this->detail       = Mockery::mock(LessonDetail::class);
+        $this->controller   = new LessonController($this->bookings, $this->payments, $this->availability, $this->offerings, $this->detail);
 
         $_POST = [];
         $_GET  = [];
@@ -176,6 +182,96 @@ class LessonControllerTest extends TestCase
         self::assertStringNotContainsString('9:00 AM', $html);
     }
 
+    public function testListViewShowsBookedOfferingName(): void
+    {
+        $_GET['usc_view'] = 'list';
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);
+        $slot   = new AvailabilitySlot(
+            instructorId: 3,
+            startDt: '2026-07-06 09:00:00',
+            endDt: '2026-07-06 10:00:00',
+            id: 10
+        );
+        $offering = new \Unsupervised\Schedular\Offering\Offering(
+            instructorId: 3,
+            kind: 'private_lesson',
+            title: 'Piano Lesson',
+            durationMinutes: 60,
+            id: 8
+        );
+
+        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
+        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);
+        $this->offerings->shouldReceive('findById')->once()->with(8)->andReturn($offering);
+
+        $html = $this->render();
+
+        self::assertStringContainsString('Piano Lesson', $html);
+        self::assertStringContainsString('lesson_id=1', $html);
+    }
+
+    public function testLessonIdRoutesToDetailWithAnswersAndPolicies(): void
+    {
+        $_GET['lesson_id'] = '1';
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);
+        $slot   = new AvailabilitySlot(
+            instructorId: 3,
+            startDt: '2026-07-06 09:00:00',
+            endDt: '2026-07-06 10:00:00',
+            id: 10
+        );
+        $offering = new \Unsupervised\Schedular\Offering\Offering(
+            instructorId: 3,
+            kind: 'private_lesson',
+            title: 'Piano Lesson',
+            durationMinutes: 60,
+            id: 8
+        );
+
+        $this->bookings->shouldReceive('findById')->once()->with(1)->andReturn($lesson);
+        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);
+        $this->offerings->shouldReceive('findById')->once()->with(8)->andReturn($offering);
+        $this->detail->shouldReceive('answers')->once()->with(1)->andReturn([
+            ['question' => 'Skill level', 'answer' => 'Beginner'],
+        ]);
+        $this->detail->shouldReceive('acceptances')->once()->with(1)->andReturn([
+            ['policy' => 'Cancellation', 'version' => 'v2', 'accepted_at' => '2026-07-01 10:00:00', 'ip' => '1.2.3.4'],
+        ]);
+
+        // The list of lessons must never be queried when routing to a detail view.
+        $this->bookings->shouldNotReceive('findAllUpcoming');
+
+        $html = $this->render();
+
+        self::assertStringContainsString('Lesson details', $html);
+        self::assertStringContainsString('Piano Lesson', $html);
+        self::assertStringContainsString('Skill level', $html);
+        self::assertStringContainsString('Beginner', $html);
+        self::assertStringContainsString('Cancellation', $html);
+    }
+
+    public function testInstructorCannotOpenAnotherInstructorsLessonDetail(): void
+    {
+        $_GET['lesson_id'] = '1';
+        Functions\when('get_current_user_id')->justReturn(99);
+
+        // The lesson belongs to instructor 3, not the current user (99).
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);
+
+        $this->bookings->shouldReceive('findById')->once()->with(1)->andReturn($lesson);
+        $this->detail->shouldNotReceive('answers');
+        $this->detail->shouldNotReceive('acceptances');
+
+        ob_start();
+        $this->controller->renderInstructorLessons();
+        $html = (string) ob_get_clean();
+
+        self::assertStringContainsString('could not be found', $html);
+        self::assertStringNotContainsString('Skill level', $html);
+    }
+
     private function render(): string
     {
         ob_start();

tests/Unit/Booking/LessonDetailTest.php

@@ -0,0 +1,95 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Booking;
+
+use Mockery;
+use Unsupervised\Schedular\Booking\LessonDetail;
+use Unsupervised\Schedular\Policy\AcceptanceRepository;
+use Unsupervised\Schedular\Policy\Policy;
+use Unsupervised\Schedular\Policy\PolicyAcceptance;
+use Unsupervised\Schedular\Policy\PolicyRepository;
+use Unsupervised\Schedular\Policy\PolicyVersion;
+use Unsupervised\Schedular\Policy\PolicyVersionRepository;
+use Unsupervised\Schedular\Registration\Answer;
+use Unsupervised\Schedular\Registration\AnswerRepository;
+use Unsupervised\Schedular\Registration\Question;
+use Unsupervised\Schedular\Registration\QuestionRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class LessonDetailTest extends TestCase
+{
+    private AnswerRepository&Mockery\MockInterface $answers;
+    private QuestionRepository&Mockery\MockInterface $questions;
+    private AcceptanceRepository&Mockery\MockInterface $acceptances;
+    private PolicyRepository&Mockery\MockInterface $policies;
+    private PolicyVersionRepository&Mockery\MockInterface $versions;
+    private LessonDetail $detail;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->answers     = Mockery::mock(AnswerRepository::class);
+        $this->questions   = Mockery::mock(QuestionRepository::class);
+        $this->acceptances = Mockery::mock(AcceptanceRepository::class);
+        $this->policies    = Mockery::mock(PolicyRepository::class);
+        $this->versions    = Mockery::mock(PolicyVersionRepository::class);
+
+        $this->detail = new LessonDetail(
+            $this->answers,
+            $this->questions,
+            $this->acceptances,
+            $this->policies,
+            $this->versions
+        );
+    }
+
+    public function testAnswersPairEachAnswerWithItsQuestionLabel(): void
+    {
+        $this->answers->shouldReceive('findByRegistration')->once()->with(Answer::REG_LESSON, 7)->andReturn([
+            new Answer(questionId: 2, registrationType: Answer::REG_LESSON, registrationId: 7, studentId: 5, answerValue: 'Beginner'),
+            new Answer(questionId: 9, registrationType: Answer::REG_LESSON, registrationId: 7, studentId: 5, answerValue: null),
+        ]);
+
+        $this->questions->shouldReceive('findById')->with(2)->andReturn(new Question(offeringId: 1, label: 'Skill level', id: 2));
+        $this->questions->shouldReceive('findById')->with(9)->andReturn(null);
+
+        self::assertSame(
+            [
+                ['question' => 'Skill level', 'answer' => 'Beginner'],
+                ['question' => '#9', 'answer' => '—'],
+            ],
+            $this->detail->answers(7)
+        );
+    }
+
+    public function testAcceptancesResolvePolicyTitleVersionAndAuditTrail(): void
+    {
+        $this->acceptances->shouldReceive('findByRegistration')->once()->with(PolicyAcceptance::REG_LESSON, 7)->andReturn([
+            new PolicyAcceptance(
+                policyVersionId: 4,
+                studentId: 5,
+                registrationType: PolicyAcceptance::REG_LESSON,
+                registrationId: 7,
+                ipAddress: '1.2.3.4',
+                acceptedAt: '2026-07-01 10:00:00'
+            ),
+        ]);
+
+        $this->versions->shouldReceive('findById')->with(4)->andReturn(new PolicyVersion(policyId: 3, versionNumber: 2, id: 4));
+        $this->policies->shouldReceive('findById')->with(3)->andReturn(new Policy(title: 'Cancellation', slug: 'cancellation', id: 3));
+
+        self::assertSame(
+            [
+                [
+                    'policy'      => 'Cancellation',
+                    'version'     => 'v2',
+                    'accepted_at' => '2026-07-01 10:00:00',
+                    'ip'          => '1.2.3.4',
+                ],
+            ],
+            $this->detail->acceptances(7)
+        );
+    }
+}

tests/Unit/GroupClass/EnrollmentEndpointTest.php

@@ -5,6 +5,7 @@ namespace Unsupervised\Schedular\Tests\Unit\GroupClass;
 
 use Brain\Monkey\Functions;
 use Mockery;
+use Unsupervised\Schedular\GroupClass\Enrollment;
 use Unsupervised\Schedular\GroupClass\EnrollmentEndpoint;
 use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
 use Unsupervised\Schedular\GroupClass\GroupAccessRepository;
@@ -32,6 +33,7 @@ class EnrollmentEndpointTest extends TestCase
         Functions\when('wp_unslash')->returnArg();
         Functions\when('sanitize_text_field')->returnArg();
         Functions\when('get_current_user_id')->justReturn(5);
+        Functions\when('current_time')->justReturn('2026-07-24');
 
         $this->enrollments = Mockery::mock(EnrollmentRepository::class);
         $this->offerings   = Mockery::mock(OfferingRepository::class);
@@ -108,6 +110,52 @@ class EnrollmentEndpointTest extends TestCase
         );
     }
 
+    public function testScheduledBillingEnrollmentDefersPayment(): void
+    {
+        // A monthly group class is billed later by the daily scan, so enrolment
+        // succeeds with no payment created now.
+        $offering = new Offering(instructorId: 3, kind: Offering::KIND_GROUP_CLASS, title: 'Choir', price: 120.0, billingMode: Offering::BILLING_MONTHLY, id: 8);
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn($offering);
+        $this->expectSuccessfulEnrollment();
+        $this->payments->shouldNotReceive('createForRegistration');
+
+        $result = $this->endpoint->enroll(new \WP_REST_Request(['offering_id' => 8]));
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(201, $result->get_status());
+        self::assertNull($result->get_data()['payment']);
+    }
+
+    public function testRejectsEnrollmentAfterExplicitDeadline(): void
+    {
+        // current_time is stubbed to 2026-07-24, past the 2026-07-10 deadline.
+        $offering = new Offering(instructorId: 3, kind: Offering::KIND_GROUP_CLASS, title: 'Choir', termStart: '2026-07-01', enrollmentDeadline: '2026-07-10', id: 8);
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn($offering);
+        $this->enrollments->shouldReceive('hasActiveEnrollment')->with(8, 5)->andReturn(false);
+        $this->enrollments->shouldReceive('insert')->never();
+
+        $result = $this->endpoint->enroll(new \WP_REST_Request(['offering_id' => 8]));
+
+        self::assertInstanceOf(\WP_Error::class, $result);
+        self::assertSame('enrollment_closed', $result->get_error_code());
+        self::assertSame(403, $result->error_data['enrollment_closed']['status']);
+    }
+
+    public function testRejectsEnrollmentAfterDefaultDeadlineOfFirstClassDay(): void
+    {
+        // No explicit deadline, so it defaults to term_start (the first class day),
+        // which is in the past relative to the stubbed 2026-07-24 "today".
+        $offering = new Offering(instructorId: 3, kind: Offering::KIND_GROUP_CLASS, title: 'Choir', termStart: '2026-07-20', id: 8);
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn($offering);
+        $this->enrollments->shouldReceive('hasActiveEnrollment')->with(8, 5)->andReturn(false);
+        $this->enrollments->shouldReceive('insert')->never();
+
+        $result = $this->endpoint->enroll(new \WP_REST_Request(['offering_id' => 8]));
+
+        self::assertInstanceOf(\WP_Error::class, $result);
+        self::assertSame('enrollment_closed', $result->get_error_code());
+    }
+
     public function testInviteOnlyClassRejectsStudentWithoutGrant(): void
     {
         $this->offerings->shouldReceive('findById')->with(8)->andReturn($this->inviteOnlyOffering());
@@ -134,4 +182,74 @@ class EnrollmentEndpointTest extends TestCase
         self::assertInstanceOf(\WP_REST_Response::class, $result);
         self::assertSame(201, $result->get_status());
     }
+
+    public function testWithdrawCancelsEnrolmentAndVoidsPendingWithoutCrediting(): void
+    {
+        // No withdrawal deadline set, so withdrawal is open. current_time is 2026-07-24.
+        $this->enrollments->shouldReceive('findById')->with(3)->andReturn(new Enrollment(8, 5, 3, Enrollment::STATUS_ACTIVE, 41, 3));
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn($this->offering(120.0));
+        $this->enrollments->shouldReceive('updateStatus')->once()->with(3, Enrollment::STATUS_CANCELLED)->andReturn(true);
+        $this->payments->shouldReceive('voidPending')->once()->with(41);
+
+        $result = $this->endpoint->withdraw(new \WP_REST_Request(['id' => 3]));
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(200, $result->get_status());
+        self::assertSame(Enrollment::STATUS_CANCELLED, $result->get_data()['status']);
+    }
+
+    public function testWithdrawRejectedAfterDeadline(): void
+    {
+        // current_time is stubbed to 2026-07-24, past the 2026-07-10 deadline.
+        $offering = new Offering(instructorId: 3, kind: Offering::KIND_GROUP_CLASS, title: 'Choir', termStart: '2026-07-01', withdrawalDeadline: '2026-07-10', id: 8);
+        $this->enrollments->shouldReceive('findById')->with(3)->andReturn(new Enrollment(8, 5, 3, Enrollment::STATUS_ACTIVE, 41, 3));
+        $this->offerings->shouldReceive('findById')->with(8)->andReturn($offering);
+        $this->enrollments->shouldReceive('updateStatus')->never();
+        $this->payments->shouldReceive('voidPending')->never();
+
+        $result = $this->endpoint->withdraw(new \WP_REST_Request(['id' => 3]));
+
+        self::assertInstanceOf(\WP_Error::class, $result);
+        self::assertSame('withdrawal_closed', $result->get_error_code());
+        self::assertSame(403, $result->error_data['withdrawal_closed']['status']);
+    }
+
+    public function testWithdrawRejectsAnotherStudentsEnrolment(): void
+    {
+        // Enrolment belongs to student 9, but the caller is student 5.
+        $this->enrollments->shouldReceive('findById')->with(3)->andReturn(new Enrollment(8, 9, 3, Enrollment::STATUS_ACTIVE, 41, 3));
+        $this->enrollments->shouldReceive('updateStatus')->never();
+
+        $result = $this->endpoint->withdraw(new \WP_REST_Request(['id' => 3]));
+
+        self::assertInstanceOf(\WP_Error::class, $result);
+        self::assertSame('forbidden', $result->get_error_code());
+        self::assertSame(403, $result->error_data['forbidden']['status']);
+    }
+
+    public function testWithdrawReturnsNotFoundForUnknownEnrolment(): void
+    {
+        $this->enrollments->shouldReceive('findById')->with(3)->andReturn(null);
+
+        $result = $this->endpoint->withdraw(new \WP_REST_Request(['id' => 3]));
+
+        self::assertInstanceOf(\WP_Error::class, $result);
+        self::assertSame('not_found', $result->get_error_code());
+        self::assertSame(404, $result->error_data['not_found']['status']);
+    }
+
+    public function testWithdrawIsIdempotentForAlreadyCancelledEnrolment(): void
+    {
+        // Already cancelled: no status change, no deadline check, no payment void.
+        $this->enrollments->shouldReceive('findById')->with(3)->andReturn(new Enrollment(8, 5, 3, Enrollment::STATUS_CANCELLED, null, 3));
+        $this->offerings->shouldReceive('findById')->never();
+        $this->enrollments->shouldReceive('updateStatus')->never();
+        $this->payments->shouldReceive('voidPending')->never();
+
+        $result = $this->endpoint->withdraw(new \WP_REST_Request(['id' => 3]));
+
+        self::assertInstanceOf(\WP_REST_Response::class, $result);
+        self::assertSame(200, $result->get_status());
+        self::assertSame(Enrollment::STATUS_CANCELLED, $result->get_data()['status']);
+    }
 }

tests/Unit/GroupClass/EnrollmentRepositoryTest.php

@@ -108,6 +108,44 @@ class EnrollmentRepositoryTest extends TestCase
         self::assertInstanceOf(Enrollment::class, $all[0]);
     }
 
+    public function testFindActiveByBillingModesJoinsOfferingAndFiltersModes(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(
+                Mockery::pattern('/e.status = %s.*o.billing_mode IN \( %s, %s \)/s'),
+                'wp_us_group_enrollments',
+                'wp_us_offerings',
+                Enrollment::STATUS_ACTIVE,
+                'weekly',
+                'monthly'
+            )
+            ->andReturn('SELECT ...');
+
+        $this->db->shouldReceive('get_results')->andReturn([
+            (object) [
+                'id'            => '12',
+                'offering_id'   => '7',
+                'student_id'    => '5',
+                'instructor_id' => '3',
+                'status'        => Enrollment::STATUS_ACTIVE,
+                'payment_id'    => null,
+            ],
+        ]);
+
+        $found = $this->repo->findActiveByBillingModes(['weekly', 'monthly']);
+
+        self::assertCount(1, $found);
+        self::assertInstanceOf(Enrollment::class, $found[0]);
+    }
+
+    public function testFindActiveByBillingModesReturnsEmptyForNoModes(): void
+    {
+        $this->db->shouldNotReceive('prepare');
+
+        self::assertSame([], $this->repo->findActiveByBillingModes([]));
+    }
+
     public function testUpdateStatusRejectsInvalid(): void
     {
         self::assertFalse($this->repo->updateStatus(1, 'bogus'));

tests/Unit/GroupClass/GroupClassControllerTest.php

@@ -65,6 +65,7 @@ class GroupClassControllerTest extends TestCase
             static fn (string $format, string $date) => date($format, (int) strtotime($date))
         );
         Functions\when('wp_nonce_field')->justReturn('');
+        Functions\when('current_time')->justReturn('2026-01-01');
 
         $_GET = [];
     }
@@ -183,6 +184,49 @@ class GroupClassControllerTest extends TestCase
         self::assertStringContainsString('Invite by email', $html);
     }
 
+    public function testClassDetailOffersDirectAddForPublicClassWithoutInviteControls(): void
+    {
+        Functions\when('get_userdata')->justReturn($this->userNamed('Ada Lovelace'));
+        $_GET = ['class_id' => '8'];
+
+        // A plain public group class — the instructor can still add students
+        // directly (a late enrolment), but the invite-only controls are absent.
+        $offering = $this->offering(8, 'Choir', 10);
+
+        $this->offerings->shouldReceive('findAll')->once()->andReturn([$offering]);
+        $this->enrollments->shouldReceive('findByInstructor')->once()->with(3)->andReturn([]);
+
+        $html = $this->renderInstructor();
+
+        self::assertStringContainsString('Add students directly', $html);
+        self::assertStringContainsString('add_direct', $html);
+        self::assertStringNotContainsString('Invite by email', $html);
+        self::assertStringNotContainsString('Make available to students', $html);
+    }
+
+    public function testClassDetailFlagsLateEnrolmentPastTheDeadline(): void
+    {
+        Functions\when('get_userdata')->justReturn($this->userNamed('Ada Lovelace'));
+        // current_time is stubbed to 2026-01-01, which is past this class's deadline.
+        $_GET = ['class_id' => '8'];
+
+        $offering = new Offering(
+            instructorId: 3,
+            kind:         Offering::KIND_GROUP_CLASS,
+            title:        'Choir',
+            termStart:    '2025-09-08',
+            id:           8,
+        );
+
+        $this->offerings->shouldReceive('findAll')->once()->andReturn([$offering]);
+        $this->enrollments->shouldReceive('findByInstructor')->once()->with(3)->andReturn([]);
+
+        $html = $this->renderInstructor();
+
+        self::assertStringContainsString('late enrolments', $html);
+        self::assertStringContainsString('Add students directly', $html);
+    }
+
     public function testClassDetailEnrolmentCountExcludesCancelledButRosterKeepsThem(): void
     {
         Functions\when('get_userdata')->justReturn($this->userNamed('Grace Hopper'));

tests/Unit/Offering/OfferingControllerTest.php

@@ -32,6 +32,8 @@ class OfferingControllerTest extends TestCase
         Functions\when('current_user_can')->justReturn(true);
         Functions\when('get_current_user_id')->justReturn(3);
         Functions\when('get_users')->justReturn([]);
+        // Default single-account setup: admins act as instructors.
+        Functions\when('get_option')->justReturn('1');
         Functions\when('check_admin_referer')->justReturn(true);
         Functions\when('admin_url')->justReturn('admin.php?page=us-offerings');
         Functions\when('add_query_arg')->alias(
@@ -102,6 +104,80 @@ class OfferingControllerTest extends TestCase
         self::assertStringContainsString('2 open booking slots were removed', $html);
     }
 
+    public function testAddGroupClassStoresEnrollmentDeadline(): void
+    {
+        $_POST = [
+            'usc_action'          => 'add',
+            'title'               => 'Ballet Beginners',
+            'kind'                => Offering::KIND_GROUP_CLASS,
+            'term_start'          => '2026-09-08',
+            'enrollment_deadline' => '2026-08-31',
+        ];
+
+        $this->repository->shouldReceive('insert')->once()->with(Mockery::on(
+            static fn (Offering $o) => '2026-08-31' === $o->enrollmentDeadline
+        ))->andReturn(1);
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+        $this->reconciler->shouldReceive('reconcile')->once()->andReturn(['removed' => 0, 'conflicts' => []]);
+
+        $this->render();
+    }
+
+    public function testBlankEnrollmentDeadlineLeavesItNullToDefaultToFirstClass(): void
+    {
+        $_POST = [
+            'usc_action' => 'add',
+            'title'      => 'Choir',
+            'kind'       => Offering::KIND_GROUP_CLASS,
+            'term_start' => '2026-09-08',
+        ];
+
+        $this->repository->shouldReceive('insert')->once()->with(Mockery::on(
+            static fn (Offering $o) => null === $o->enrollmentDeadline
+        ))->andReturn(1);
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+        $this->reconciler->shouldReceive('reconcile')->once()->andReturn(['removed' => 0, 'conflicts' => []]);
+
+        $this->render();
+    }
+
+    public function testAddGroupClassStoresWithdrawalDeadline(): void
+    {
+        $_POST = [
+            'usc_action'          => 'add',
+            'title'               => 'Ballet Beginners',
+            'kind'                => Offering::KIND_GROUP_CLASS,
+            'term_start'          => '2026-09-08',
+            'withdrawal_deadline' => '2026-08-31',
+        ];
+
+        $this->repository->shouldReceive('insert')->once()->with(Mockery::on(
+            static fn (Offering $o) => '2026-08-31' === $o->withdrawalDeadline
+        ))->andReturn(1);
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+        $this->reconciler->shouldReceive('reconcile')->once()->andReturn(['removed' => 0, 'conflicts' => []]);
+
+        $this->render();
+    }
+
+    public function testBlankWithdrawalDeadlineLeavesItNull(): void
+    {
+        $_POST = [
+            'usc_action' => 'add',
+            'title'      => 'Choir',
+            'kind'       => Offering::KIND_GROUP_CLASS,
+            'term_start' => '2026-09-08',
+        ];
+
+        $this->repository->shouldReceive('insert')->once()->with(Mockery::on(
+            static fn (Offering $o) => null === $o->withdrawalDeadline
+        ))->andReturn(1);
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+        $this->reconciler->shouldReceive('reconcile')->once()->andReturn(['removed' => 0, 'conflicts' => []]);
+
+        $this->render();
+    }
+
     public function testGarbageClassTimeIsRejected(): void
     {
         $_POST = [
@@ -376,6 +452,51 @@ class OfferingControllerTest extends TestCase
         self::assertStringNotContainsString('Edit Offering', $html);
     }
 
+    public function testInstructorPickerIncludesAdministratorsWhenTheyActAsInstructors(): void
+    {
+        // The reported bug: a solo studio owner runs the business from a WordPress
+        // administrator account and teaches through the dynamic capability grant,
+        // so they never hold the us_instructor role. The picker must still list
+        // them, otherwise there is no one to assign a class to.
+        Functions\when('get_option')->justReturn('1');
+
+        $admin               = Mockery::mock(\WP_User::class);
+        $admin->ID           = 3;
+        $admin->display_name = 'Studio Owner';
+
+        $queriedRoles = [];
+        Functions\when('get_users')->alias(static function (array $args) use (&$queriedRoles, $admin): array {
+            $queriedRoles = $args['role__in'];
+            return [$admin];
+        });
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+
+        $html = $this->render();
+
+        self::assertContains('us_instructor', $queriedRoles);
+        self::assertContains('administrator', $queriedRoles);
+        self::assertStringContainsString('Studio Owner', $html);
+        self::assertStringContainsString('<option value="3"', $html);
+    }
+
+    public function testInstructorPickerExcludesAdministratorsWhenGrantDisabled(): void
+    {
+        // With the "admins are instructors" toggle off, an admin is not a teacher,
+        // so only the explicit us_instructor role is queried.
+        Functions\when('get_option')->justReturn('0');
+
+        $queriedRoles = null;
+        Functions\when('get_users')->alias(static function (array $args) use (&$queriedRoles): array {
+            $queriedRoles = $args['role__in'];
+            return [];
+        });
+        $this->repository->shouldReceive('findAll')->andReturn([]);
+
+        $this->render();
+
+        self::assertSame(['us_instructor'], $queriedRoles);
+    }
+
     private function render(): string
     {
         ob_start();

tests/Unit/Offering/OfferingEndpointTest.php

@@ -5,6 +5,7 @@ namespace Unsupervised\Schedular\Tests\Unit\Offering;
 
 use Brain\Monkey\Functions;
 use Mockery;
+use Unsupervised\Schedular\Auth\RoleManager;
 use Unsupervised\Schedular\GroupClass\GroupAccessRepository;
 use Unsupervised\Schedular\Offering\Offering;
 use Unsupervised\Schedular\Offering\OfferingEndpoint;
@@ -118,4 +119,73 @@ class OfferingEndpointTest extends TestCase
 
         self::assertArrayNotHasKey('etransfer_email', $data[0]);
     }
+
+    public function testCanReadAllowsStudentsWhoMayBook(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('current_user_can')->alias(
+            static fn (string $cap): bool => RoleManager::CAP_BOOK_LESSON === $cap
+        );
+
+        self::assertTrue($this->endpoint->canRead());
+    }
+
+    public function testCanReadAllowsOfferingManagersWhoCannotBook(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('current_user_can')->alias(
+            static fn (string $cap): bool => RoleManager::CAP_MANAGE_OFFERINGS === $cap
+        );
+
+        self::assertTrue($this->endpoint->canRead());
+    }
+
+    public function testCanReadRejectsLoggedInUserWithNeitherCapability(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(true);
+        Functions\when('current_user_can')->justReturn(false);
+
+        self::assertFalse($this->endpoint->canRead());
+    }
+
+    public function testCanReadRejectsLoggedOutVisitors(): void
+    {
+        Functions\when('is_user_logged_in')->justReturn(false);
+        Functions\when('current_user_can')->justReturn(true);
+
+        self::assertFalse($this->endpoint->canRead());
+    }
+
+    public function testCreateRejectsTitleLongerThanColumnLimit(): void
+    {
+        Functions\when('sanitize_text_field')->returnArg();
+        Functions\when('sanitize_email')->returnArg();
+        $this->repository->shouldNotReceive('insert');
+
+        $request  = new \WP_REST_Request([
+            'kind'  => Offering::KIND_GROUP_CLASS,
+            'title' => str_repeat('a', Offering::MAX_TITLE_LENGTH + 1),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_Error::class, $response);
+        self::assertSame(400, $response->error_data['invalid_offering']['status']);
+    }
+
+    public function testCreateRejectsScheduleNoteLongerThanColumnLimit(): void
+    {
+        Functions\when('sanitize_text_field')->returnArg();
+        Functions\when('sanitize_email')->returnArg();
+        $this->repository->shouldNotReceive('insert');
+
+        $request  = new \WP_REST_Request([
+            'kind'          => Offering::KIND_GROUP_CLASS,
+            'title'         => 'Choir',
+            'schedule_note' => str_repeat('a', Offering::MAX_SCHEDULE_NOTE_LENGTH + 1),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_Error::class, $response);
+        self::assertSame(400, $response->error_data['invalid_offering']['status']);
+    }
 }

tests/Unit/Offering/OfferingRepositoryTest.php

@@ -192,6 +192,29 @@ class OfferingRepositoryTest extends TestCase
         self::assertSame(1, $this->repo->insert($offering));
     }
 
+    public function testInsertPersistsWithdrawalDeadline(): void
+    {
+        Functions\expect('current_time')->with('mysql')->andReturn('2026-04-01 12:00:00');
+
+        $this->db->shouldReceive('insert')
+            ->once()
+            ->with(
+                'wp_us_offerings',
+                Mockery::on(static fn (array $data): bool => $data['withdrawal_deadline'] === '2026-08-31'),
+                Mockery::type('array')
+            );
+        $this->db->insert_id = 1;
+
+        $offering = new Offering(
+            instructorId:       5,
+            kind:               Offering::KIND_GROUP_CLASS,
+            title:              'Choir',
+            withdrawalDeadline: '2026-08-31',
+        );
+
+        self::assertSame(1, $this->repo->insert($offering));
+    }
+
     public function testDeleteCallsWpdbDelete(): void
     {
         $this->db->shouldReceive('delete')

tests/Unit/Offering/OfferingTest.php

@@ -276,5 +276,84 @@ class OfferingTest extends TestCase
         self::assertContains(Offering::KIND_GROUP_CLASS, Offering::VALID_KINDS);
         self::assertContains(Offering::BILLING_ONE_TIME, Offering::VALID_BILLING_MODES);
         self::assertContains(Offering::BILLING_FULL_TERM, Offering::VALID_BILLING_MODES);
+        self::assertContains(Offering::BILLING_WEEKLY, Offering::VALID_BILLING_MODES);
+        self::assertContains(Offering::BILLING_MONTHLY, Offering::VALID_BILLING_MODES);
+    }
+
+    public function testIsScheduledBillingOnlyForWeeklyAndMonthly(): void
+    {
+        self::assertFalse((new Offering(1, Offering::KIND_PRIVATE_LESSON, 'A', billingMode: Offering::BILLING_ONE_TIME))->isScheduledBilling());
+        self::assertFalse((new Offering(1, Offering::KIND_PRIVATE_LESSON, 'A', billingMode: Offering::BILLING_FULL_TERM))->isScheduledBilling());
+        self::assertTrue((new Offering(1, Offering::KIND_PRIVATE_LESSON, 'A', billingMode: Offering::BILLING_WEEKLY))->isScheduledBilling());
+        self::assertTrue((new Offering(1, Offering::KIND_GROUP_CLASS, 'A', billingMode: Offering::BILLING_MONTHLY))->isScheduledBilling());
+    }
+
+    public function testEffectiveEnrollmentDeadlineDefaultsToTermStart(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', termStart: '2026-09-08');
+
+        self::assertSame('2026-09-08', $offering->effectiveEnrollmentDeadline());
+    }
+
+    public function testEffectiveEnrollmentDeadlineUsesExplicitValueWhenSet(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', termStart: '2026-09-08', enrollmentDeadline: '2026-08-31');
+
+        self::assertSame('2026-08-31', $offering->effectiveEnrollmentDeadline());
+    }
+
+    public function testEffectiveEnrollmentDeadlineIsNullWithoutDates(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir');
+
+        self::assertNull($offering->effectiveEnrollmentDeadline());
+    }
+
+    public function testIsEnrollmentOpenOnAndBeforeTheDeadlineDay(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', termStart: '2026-09-08', enrollmentDeadline: '2026-08-31');
+
+        self::assertTrue($offering->isEnrollmentOpen('2026-08-30'));
+        self::assertTrue($offering->isEnrollmentOpen('2026-08-31'));
+        self::assertFalse($offering->isEnrollmentOpen('2026-09-01'));
+    }
+
+    public function testIsEnrollmentOpenAlwaysTrueWithoutADeadline(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir');
+
+        self::assertTrue($offering->isEnrollmentOpen('2099-01-01'));
+    }
+
+    public function testToArrayIncludesEnrollmentDeadline(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', enrollmentDeadline: '2026-08-31', id: 10);
+
+        self::assertSame('2026-08-31', $offering->toArray()['enrollment_deadline']);
+    }
+
+    public function testIsWithdrawalOpenOnAndBeforeTheDeadlineDay(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', termStart: '2026-09-08', withdrawalDeadline: '2026-08-31');
+
+        self::assertTrue($offering->isWithdrawalOpen('2026-08-30'));
+        self::assertTrue($offering->isWithdrawalOpen('2026-08-31'));
+        self::assertFalse($offering->isWithdrawalOpen('2026-09-01'));
+    }
+
+    public function testIsWithdrawalOpenAlwaysTrueWithoutADeadline(): void
+    {
+        // Unlike the enrolment deadline, a withdrawal deadline has no default:
+        // an unset deadline leaves self-withdrawal open indefinitely.
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', termStart: '2026-09-08');
+
+        self::assertTrue($offering->isWithdrawalOpen('2099-01-01'));
+    }
+
+    public function testToArrayIncludesWithdrawalDeadline(): void
+    {
+        $offering = new Offering(1, Offering::KIND_GROUP_CLASS, 'Choir', withdrawalDeadline: '2026-08-31', id: 10);
+
+        self::assertSame('2026-08-31', $offering->toArray()['withdrawal_deadline']);
     }
 }

tests/Unit/Payment/CreditRepositoryTest.php

@@ -0,0 +1,111 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Payment;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Payment\Credit;
+use Unsupervised\Schedular\Payment\CreditRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class CreditRepositoryTest extends TestCase
+{
+    private \wpdb $db;
+    private CreditRepository $repo;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->db         = Mockery::mock(\wpdb::class);
+        $this->db->prefix = 'wp_';
+        $this->repo       = new CreditRepository($this->db);
+    }
+
+    public function testInsertReturnsId(): void
+    {
+        Functions\expect('current_time')->with('mysql')->andReturn('2026-06-08 12:00:00');
+
+        $this->db->shouldReceive('insert')
+            ->once()
+            ->with(
+                'wp_us_credits',
+                Mockery::on(static function (array $d): bool {
+                    return $d['student_id'] === 5
+                        && $d['amount'] === 33.0
+                        && $d['remaining'] === 33.0
+                        && $d['source_lesson_id'] === 77
+                        && $d['status'] === Credit::STATUS_AVAILABLE;
+                }),
+                Mockery::type('array')
+            );
+        $this->db->insert_id = 300;
+
+        $credit = new Credit(5, 33.0, 33.0, 'CAD', 12, 77, 'Credit for cancelled lesson #77');
+        self::assertSame(300, $this->repo->insert($credit));
+    }
+
+    public function testExistsForLessonReturnsTrueWhenRowFound(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/source_lesson_id = %d/'), 'wp_us_credits', 77)
+            ->andReturn('SELECT ...');
+        $this->db->shouldReceive('get_var')->once()->with('SELECT ...')->andReturn('300');
+
+        self::assertTrue($this->repo->existsForLesson(77));
+    }
+
+    public function testExistsForLessonReturnsFalseWhenNone(): void
+    {
+        $this->db->shouldReceive('prepare')->andReturn('SELECT ...');
+        $this->db->shouldReceive('get_var')->once()->andReturn(null);
+
+        self::assertFalse($this->repo->existsForLesson(77));
+    }
+
+    public function testAvailableBalanceSumsRemaining(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/SUM\( remaining \)/'), 'wp_us_credits', 5, Credit::STATUS_AVAILABLE)
+            ->andReturn('SELECT ...');
+        $this->db->shouldReceive('get_var')->once()->with('SELECT ...')->andReturn('45.00');
+
+        self::assertSame(45.0, $this->repo->availableBalance(5));
+    }
+
+    public function testConsumeDrawsDownOldestFirstAndMarksSpentConsumed(): void
+    {
+        // Two available credits ($20 then $30); consuming $35 empties the first and
+        // takes $15 from the second, leaving it $15 and still available.
+        $rows = [
+            (object) ['id' => '1', 'student_id' => '5', 'amount' => '20.00', 'remaining' => '20.00', 'currency' => 'CAD', 'source_payment_id' => null, 'source_lesson_id' => null, 'reason' => null, 'status' => Credit::STATUS_AVAILABLE, 'created_at' => '2026-06-01 09:00:00', 'updated_at' => null],
+            (object) ['id' => '2', 'student_id' => '5', 'amount' => '30.00', 'remaining' => '30.00', 'currency' => 'CAD', 'source_payment_id' => null, 'source_lesson_id' => null, 'reason' => null, 'status' => Credit::STATUS_AVAILABLE, 'created_at' => '2026-06-02 09:00:00', 'updated_at' => null],
+        ];
+
+        Functions\expect('current_time')->with('mysql')->andReturn('2026-07-15 12:00:00');
+        $this->db->shouldReceive('prepare')->andReturn('SELECT ...');
+        $this->db->shouldReceive('get_results')->once()->with('SELECT ...')->andReturn($rows);
+
+        // First credit fully spent -> consumed.
+        $this->db->shouldReceive('update')
+            ->once()
+            ->with('wp_us_credits', Mockery::on(static fn (array $d): bool => $d['remaining'] === 0.0 && $d['status'] === Credit::STATUS_CONSUMED), ['id' => 1], Mockery::type('array'), Mockery::type('array'));
+        // Second credit partly spent -> stays available with $15 remaining.
+        $this->db->shouldReceive('update')
+            ->once()
+            ->with('wp_us_credits', Mockery::on(static fn (array $d): bool => $d['remaining'] === 15.0 && $d['status'] === Credit::STATUS_AVAILABLE), ['id' => 2], Mockery::type('array'), Mockery::type('array'));
+
+        $this->repo->consume(5, 35.0);
+    }
+
+    public function testConsumeIgnoresNonPositiveAmount(): void
+    {
+        $this->db->shouldNotReceive('get_results');
+        $this->db->shouldNotReceive('update');
+
+        $this->repo->consume(5, 0.0);
+    }
+}

tests/Unit/Payment/PaymentDueMailerTest.php

@@ -0,0 +1,132 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Payment;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Payment\PaymentDueMailer;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class PaymentDueMailerTest extends TestCase
+{
+    private function student(string $email): \WP_User
+    {
+        $student             = Mockery::mock(\WP_User::class);
+        $student->user_email = $email;
+
+        return $student;
+    }
+
+    public function testReturnsFalseWithoutRecipient(): void
+    {
+        $items = [[ 'label' => 'x', 'amount' => 10.0, 'currency' => 'CAD', 'due_date' => '2026-07-14', 'etransfer_email' => null ]];
+
+        self::assertFalse((new PaymentDueMailer())->send($this->student(''), $items));
+    }
+
+    public function testReturnsFalseWithNoItems(): void
+    {
+        self::assertFalse((new PaymentDueMailer())->send($this->student('[email protected]'), []));
+    }
+
+    public function testConsolidatesItemsWithGrandTotal(): void
+    {
+        Functions\expect('wp_mail')
+            ->once()
+            ->with(
+                '[email protected]',
+                Mockery::type('string'),
+                Mockery::on(static function (string $body): bool {
+                    return str_contains($body, 'Piano')
+                        && str_contains($body, 'Jul 15, 2026')
+                        && str_contains($body, 'Guitar')
+                        && str_contains($body, 'Jul 22, 2026')
+                        && str_contains($body, '35.00')
+                        && str_contains($body, '40.00')
+                        // 35 + 40 grand total
+                        && str_contains($body, '75.00');
+                })
+            )
+            ->andReturn(true);
+
+        $items = [
+            [ 'label' => 'Piano', 'amount' => 35.0, 'currency' => 'CAD', 'due_date' => '2026-07-15', 'etransfer_email' => null ],
+            [ 'label' => 'Guitar', 'amount' => 40.0, 'currency' => 'CAD', 'due_date' => '2026-07-22', 'etransfer_email' => null ],
+        ];
+
+        self::assertTrue((new PaymentDueMailer())->send($this->student('[email protected]'), $items));
+    }
+
+    public function testIncludesReferenceWhenProvided(): void
+    {
+        Functions\expect('wp_mail')
+            ->once()
+            ->with(
+                '[email protected]',
+                Mockery::type('string'),
+                Mockery::on(static fn (string $body): bool => str_contains($body, 'REF12345'))
+            )
+            ->andReturn(true);
+
+        $items = [[ 'label' => 'Piano', 'amount' => 35.0, 'currency' => 'CAD', 'due_date' => '2026-07-15', 'etransfer_email' => null ]];
+
+        self::assertTrue((new PaymentDueMailer())->send($this->student('[email protected]'), $items, 'REF12345'));
+    }
+
+    public function testCreditReducesTheTotalDue(): void
+    {
+        Functions\expect('wp_mail')
+            ->once()
+            ->with(
+                '[email protected]',
+                Mockery::type('string'),
+                Mockery::on(static function (string $body): bool {
+                    // Line shows the full 35.00; credit line shows -20.00; total due 15.00.
+                    return str_contains($body, '35.00')
+                        && str_contains($body, '-CAD 20.00')
+                        && str_contains($body, 'Total due: CAD 15.00');
+                })
+            )
+            ->andReturn(true);
+
+        $items = [[ 'label' => 'Piano', 'amount' => 35.0, 'currency' => 'CAD', 'due_date' => '2026-07-15', 'etransfer_email' => '[email protected]' ]];
+
+        self::assertTrue((new PaymentDueMailer())->send($this->student('[email protected]'), $items, 'REF1', 20.0));
+    }
+
+    public function testCreditCoveringEverythingLeavesZeroDueAndNoEtransferLine(): void
+    {
+        Functions\expect('wp_mail')
+            ->once()
+            ->with(
+                '[email protected]',
+                Mockery::type('string'),
+                Mockery::on(static function (string $body): bool {
+                    return str_contains($body, 'Total due: CAD 0.00')
+                        && ! str_contains($body, '[email protected]');
+                })
+            )
+            ->andReturn(true);
+
+        $items = [[ 'label' => 'Piano', 'amount' => 35.0, 'currency' => 'CAD', 'due_date' => '2026-07-15', 'etransfer_email' => '[email protected]' ]];
+
+        self::assertTrue((new PaymentDueMailer())->send($this->student('[email protected]'), $items, '', 35.0));
+    }
+
+    public function testIncludesEtransferDestination(): void
+    {
+        Functions\expect('wp_mail')
+            ->once()
+            ->with(
+                '[email protected]',
+                Mockery::type('string'),
+                Mockery::on(static fn (string $body): bool => str_contains($body, '[email protected]'))
+            )
+            ->andReturn(true);
+
+        $items = [[ 'label' => 'Piano', 'amount' => 35.0, 'currency' => 'CAD', 'due_date' => '2026-07-15', 'etransfer_email' => '[email protected]' ]];
+
+        self::assertTrue((new PaymentDueMailer())->send($this->student('[email protected]'), $items));
+    }
+}

tests/Unit/Payment/PaymentRepositoryTest.php

@@ -44,6 +44,68 @@ class PaymentRepositoryTest extends TestCase
         self::assertSame(50, $this->repo->insert(new Payment(5, 3, Payment::REG_LESSON, 12, 35.00)));
     }
 
+    public function testInsertPersistsScheduledDueDateAndPeriodKey(): void
+    {
+        Functions\expect('current_time')->with('mysql')->andReturn('2026-06-08 12:00:00');
+
+        $this->db->shouldReceive('insert')
+            ->once()
+            ->with(
+                'wp_us_payments',
+                Mockery::on(static function (array $d): bool {
+                    return $d['due_date'] === '2026-07-14'
+                        && $d['period_key'] === '2026-07-15';
+                }),
+                Mockery::type('array')
+            );
+        $this->db->insert_id = 51;
+
+        self::assertSame(
+            51,
+            $this->repo->insert(new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, dueDate: '2026-07-14', periodKey: '2026-07-15'))
+        );
+    }
+
+    public function testExistsForPeriodReturnsTrueWhenRowFound(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/registration_type = %s AND registration_id = %d AND period_key = %s/'), 'wp_us_payments', Payment::REG_ENROLLMENT, 7, '2026-07')
+            ->andReturn('SELECT ...');
+
+        $this->db->shouldReceive('get_var')->once()->with('SELECT ...')->andReturn('91');
+
+        self::assertTrue($this->repo->existsForPeriod(Payment::REG_ENROLLMENT, 7, '2026-07'));
+    }
+
+    public function testExistsForPeriodReturnsFalseWhenAbsent(): void
+    {
+        $this->db->shouldReceive('prepare')->once()->andReturn('SELECT ...');
+        $this->db->shouldReceive('get_var')->once()->andReturn(null);
+
+        self::assertFalse($this->repo->existsForPeriod(Payment::REG_ENROLLMENT, 7, '2026-08'));
+    }
+
+    public function testAssignNoticeBatchUpdatesRows(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/SET notice_batch = %s WHERE id IN \( %d, %d \)/'), 'wp_us_payments', 'REF12345', 5, 6)
+            ->andReturn('UPDATE ...');
+
+        $this->db->shouldReceive('query')->once()->with('UPDATE ...')->andReturn(2);
+
+        $this->repo->assignNoticeBatch([5, 6], 'REF12345');
+    }
+
+    public function testAssignNoticeBatchNoopForEmptyIds(): void
+    {
+        $this->db->shouldNotReceive('prepare');
+        $this->db->shouldNotReceive('query');
+
+        $this->repo->assignNoticeBatch([], 'REF12345');
+    }
+
     public function testMarkPaidUpdatesStatusAndReceipt(): void
     {
         Functions\expect('current_time')->with('mysql')->andReturn('2026-06-08 12:00:00');

tests/Unit/Payment/PaymentServiceTest.php

@@ -9,6 +9,8 @@ use Unsupervised\Schedular\Booking\BookingRepository;
 use Unsupervised\Schedular\Booking\Lesson;
 use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
 use Unsupervised\Schedular\Payment\BillingMethodResolver;
+use Unsupervised\Schedular\Payment\Credit;
+use Unsupervised\Schedular\Payment\CreditRepository;
 use Unsupervised\Schedular\Payment\Payment;
 use Unsupervised\Schedular\Payment\PaymentRepository;
 use Unsupervised\Schedular\Payment\PaymentService;
@@ -26,6 +28,7 @@ class PaymentServiceTest extends TestCase
     private EnrollmentRepository $enrollments;
     private StudioSettings $settings;
     private StripeGateway $stripe;
+    private CreditRepository $credits;
     private PaymentService $service;
 
     protected function setUp(): void
@@ -39,6 +42,7 @@ class PaymentServiceTest extends TestCase
         $this->enrollments = Mockery::mock(EnrollmentRepository::class);
         $this->settings    = Mockery::mock(StudioSettings::class);
         $this->stripe      = Mockery::mock(StripeGateway::class);
+        $this->credits     = Mockery::mock(CreditRepository::class);
         $this->settings->shouldReceive('etransferEmail')->andReturn('');
         $this->settings->shouldReceive('hstRate')->andReturn(0.0)->byDefault();
         // Confirming a lesson looks it up to detect a weekly series; single
@@ -52,7 +56,8 @@ class PaymentServiceTest extends TestCase
             $this->bookings,
             $this->enrollments,
             $this->settings,
-            $this->stripe
+            $this->stripe,
+            $this->credits
         );
 
         Functions\when('get_userdata')->justReturn(false);
@@ -76,6 +81,17 @@ class PaymentServiceTest extends TestCase
         $this->service->voidPending(50);
     }
 
+    public function testVoidPendingLeavesScheduledPaymentAlone(): void
+    {
+        // A scheduled (weekly/monthly) payment can cover several lessons and may be
+        // collected: cancelling one lesson must never void it or trigger a rebill.
+        $scheduled = new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PENDING, dueDate: '2026-07-14', id: 60);
+        $this->payments->shouldReceive('findById')->with(60)->andReturn($scheduled);
+        $this->payments->shouldNotReceive('updateStatus');
+
+        $this->service->voidPending(60);
+    }
+
     public function testVoidPendingLeavesPaidPaymentAlone(): void
     {
         // Refunds are manual: cancelling a paid lesson must not touch the ledger.
@@ -329,6 +345,151 @@ class PaymentServiceTest extends TestCase
         self::assertTrue($this->service->handleWebhook('{}', 'sig'));
     }
 
+    public function testCreditForCancelledLessonCreditsWholeTotalOfSingleLessonPayment(): void
+    {
+        // A paid single-lesson payment: the whole total (incl. tax) is credited.
+        $paid = new Payment(5, 3, Payment::REG_LESSON, 77, 30.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PAID, taxRate: 10.0, taxAmount: 3.00, id: 12);
+        $this->payments->shouldReceive('findById')->with(12)->andReturn($paid);
+        $this->bookings->shouldReceive('countByPaymentId')->with(12)->andReturn(1);
+        $this->credits->shouldReceive('existsForLesson')->with(77)->andReturn(false);
+
+        $this->credits->shouldReceive('insert')
+            ->once()
+            ->with(Mockery::on(static fn (Credit $c): bool => $c->studentId === 5
+                && $c->amount === 33.00
+                && $c->remaining === 33.00
+                && $c->sourceLessonId === 77))
+            ->andReturn(300);
+        $this->credits->shouldReceive('findById')->with(300)->andReturn(
+            new Credit(5, 33.00, 33.00, 'CAD', 12, 77, id: 300)
+        );
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, status: Lesson::STATUS_CANCELLED, paymentId: 12, id: 77);
+        self::assertNotNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testCreditForCancelledLessonSplitsSharedMonthlyPayment(): void
+    {
+        // A monthly scheduled charge covering 3 lessons: one cancellation credits a third.
+        $paid = new Payment(5, 3, Payment::REG_LESSON, 201, 90.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PAID, dueDate: '2026-07-01', id: 12);
+        $this->payments->shouldReceive('findById')->with(12)->andReturn($paid);
+        $this->bookings->shouldReceive('countByPaymentId')->with(12)->andReturn(3);
+        $this->credits->shouldReceive('existsForLesson')->with(202)->andReturn(false);
+
+        $this->credits->shouldReceive('insert')
+            ->once()
+            ->with(Mockery::on(static fn (Credit $c): bool => $c->amount === 30.00))
+            ->andReturn(301);
+        $this->credits->shouldReceive('findById')->with(301)->andReturn(new Credit(5, 30.00, 30.00, 'CAD', 12, 202, id: 301));
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, status: Lesson::STATUS_CANCELLED, paymentId: 12, id: 202);
+        self::assertNotNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testCreditForCancelledLessonSkipsUnpaidPayment(): void
+    {
+        $pending = new Payment(5, 3, Payment::REG_LESSON, 77, 30.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PENDING, id: 12);
+        $this->payments->shouldReceive('findById')->with(12)->andReturn($pending);
+        $this->credits->shouldNotReceive('insert');
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, paymentId: 12, id: 77);
+        self::assertNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testCreditForCancelledLessonSkipsWhenNoPayment(): void
+    {
+        $this->credits->shouldNotReceive('insert');
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, id: 77);
+        self::assertNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testCreditForCancelledLessonSkipsAlreadyCredited(): void
+    {
+        $paid = new Payment(5, 3, Payment::REG_LESSON, 77, 30.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PAID, id: 12);
+        $this->payments->shouldReceive('findById')->with(12)->andReturn($paid);
+        $this->bookings->shouldReceive('countByPaymentId')->with(12)->andReturn(1);
+        $this->credits->shouldReceive('existsForLesson')->with(77)->andReturn(true);
+        $this->credits->shouldNotReceive('insert');
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, paymentId: 12, id: 77);
+        self::assertNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testCreditForCancelledLessonUsesSeriesSizeForUpfrontSeries(): void
+    {
+        // A non-anchor series lesson has no payment_id of its own; the anchor's
+        // upfront (unscheduled) payment covers the whole 4-lesson series.
+        $anchorPayment = new Payment(5, 3, Payment::REG_LESSON, 40, 120.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PAID, id: 12);
+        $this->payments->shouldReceive('findByRegistration')->with(Payment::REG_LESSON, 40)->andReturn($anchorPayment);
+        $this->payments->shouldReceive('findById')->with(12)->andReturn($anchorPayment);
+        $this->bookings->shouldReceive('countBySeries')->with(40)->andReturn(4);
+        $this->credits->shouldReceive('existsForLesson')->with(43)->andReturn(false);
+
+        $this->credits->shouldReceive('insert')
+            ->once()
+            ->with(Mockery::on(static fn (Credit $c): bool => $c->amount === 30.00))
+            ->andReturn(302);
+        $this->credits->shouldReceive('findById')->with(302)->andReturn(new Credit(5, 30.00, 30.00, 'CAD', 12, 43, id: 302));
+
+        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, recurrence: Lesson::RECURRENCE_WEEKLY, seriesId: 40, paymentId: null, id: 43);
+        self::assertNotNull($this->service->creditForCancelledLesson($lesson));
+    }
+
+    public function testApplyCreditsReturnsEmptyWhenNoBalance(): void
+    {
+        $this->credits->shouldReceive('availableBalance')->with(5)->andReturn(0.0);
+
+        self::assertSame([], $this->service->applyCredits(5, [$this->pending(500, 40.00)]));
+    }
+
+    public function testApplyCreditsPartiallyCoversWithoutMarkingPaid(): void
+    {
+        // $30 credit against a $40 charge: applied but still owing, so it stays pending.
+        $this->credits->shouldReceive('availableBalance')->with(5)->andReturn(30.0);
+        $this->payments->shouldReceive('addCreditApplied')->once()->with(500, 30.0)->andReturn(true);
+        $this->payments->shouldNotReceive('markPaid');
+        $this->credits->shouldReceive('consume')->once()->with(5, 30.0);
+
+        $applied = $this->service->applyCredits(5, [$this->pending(500, 40.00)]);
+
+        self::assertSame([500 => 30.0], $applied);
+    }
+
+    public function testApplyCreditsFullyCoversMarksPaidByCreditAndConfirms(): void
+    {
+        // $50 credit against a $40 charge: fully covered -> settled + registration confirmed.
+        $this->credits->shouldReceive('availableBalance')->with(5)->andReturn(50.0);
+        $this->payments->shouldReceive('addCreditApplied')->once()->with(500, 40.0)->andReturn(true);
+        $this->payments->shouldReceive('markPaid')->once()->with(500, 'USC-500')->andReturn(true);
+        $this->bookings->shouldReceive('updateStatus')->once()->with(12, Lesson::STATUS_CONFIRMED)->andReturn(true);
+        $this->credits->shouldReceive('consume')->once()->with(5, 40.0);
+
+        $applied = $this->service->applyCredits(5, [$this->pending(500, 40.00)]);
+
+        self::assertSame([500 => 40.0], $applied);
+    }
+
+    public function testApplyCreditsSpreadsAcrossChargesOldestFirst(): void
+    {
+        // $50 balance across two $40 charges: first fully covered, second partly.
+        $this->credits->shouldReceive('availableBalance')->with(5)->andReturn(50.0);
+        $this->payments->shouldReceive('addCreditApplied')->once()->with(500, 40.0)->andReturn(true);
+        $this->payments->shouldReceive('markPaid')->once()->with(500, 'USC-500')->andReturn(true);
+        $this->bookings->shouldReceive('updateStatus')->once()->with(12, Lesson::STATUS_CONFIRMED)->andReturn(true);
+        $this->payments->shouldReceive('addCreditApplied')->once()->with(501, 10.0)->andReturn(true);
+        $this->credits->shouldReceive('consume')->once()->with(5, 50.0);
+
+        $applied = $this->service->applyCredits(5, [$this->pending(500, 40.00), $this->pending(501, 40.00)]);
+
+        self::assertSame([500 => 40.0, 501 => 10.0], $applied);
+    }
+
+    private function pending(int $id, float $amount): Payment
+    {
+        return new Payment(5, 3, Payment::REG_LESSON, 12, $amount, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PENDING, dueDate: '2026-07-14', id: $id);
+    }
+
     private function intentEvent(string $type, string $intentId): \Stripe\Event
     {
         $intent = \Stripe\PaymentIntent::constructFrom(['id' => $intentId, 'object' => 'payment_intent']);

tests/Unit/Payment/PaymentTest.php

@@ -73,6 +73,28 @@ class PaymentTest extends TestCase
         self::assertSame(100.00, $payment->total());
     }
 
+    public function testNetDueSubtractsAppliedCredit(): void
+    {
+        $payment = new Payment(5, 3, Payment::REG_LESSON, 12, 100.00, taxRate: 13.0, taxAmount: 13.00, creditApplied: 40.00);
+
+        self::assertSame(113.00, $payment->total());
+        self::assertSame(73.00, $payment->netDue());
+    }
+
+    public function testNetDueFloorsAtZeroWhenCreditExceedsTotal(): void
+    {
+        $payment = new Payment(5, 3, Payment::REG_LESSON, 12, 30.00, creditApplied: 50.00);
+
+        self::assertSame(0.0, $payment->netDue());
+    }
+
+    public function testNetDueEqualsTotalWithoutCredit(): void
+    {
+        $payment = new Payment(5, 3, Payment::REG_LESSON, 12, 30.00);
+
+        self::assertSame(30.00, $payment->netDue());
+    }
+
     public function testToSummaryArrayContainsOnlyClientFacingFields(): void
     {
         $summary = (new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, id: 7))->toSummaryArray();

tests/Unit/Payment/ScheduledBillingRunnerTest.php

@@ -0,0 +1,336 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Payment;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Booking\BookingRepository;
+use Unsupervised\Schedular\GroupClass\Enrollment;
+use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
+use Unsupervised\Schedular\Offering\Offering;
+use Unsupervised\Schedular\Offering\OfferingRepository;
+use Unsupervised\Schedular\Payment\Payment;
+use Unsupervised\Schedular\Payment\PaymentDueMailer;
+use Unsupervised\Schedular\Payment\PaymentService;
+use Unsupervised\Schedular\Payment\ScheduledBillingRunner;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class ScheduledBillingRunnerTest extends TestCase
+{
+    private PaymentService $payments;
+    private BookingRepository $bookings;
+    private EnrollmentRepository $enrollments;
+    private OfferingRepository $offerings;
+    private PaymentDueMailer $mailer;
+    private ScheduledBillingRunner $runner;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->payments    = Mockery::mock(PaymentService::class);
+        $this->bookings    = Mockery::mock(BookingRepository::class);
+        $this->enrollments = Mockery::mock(EnrollmentRepository::class);
+        $this->offerings   = Mockery::mock(OfferingRepository::class);
+        $this->mailer      = Mockery::mock(PaymentDueMailer::class);
+
+        // Defaults: nothing to bill unless a test says otherwise.
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')->andReturn([])->byDefault();
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([])->byDefault();
+        $this->mailer->shouldReceive('send')->andReturn(true)->byDefault();
+        $this->payments->shouldReceive('assignNoticeBatch')->byDefault();
+        // No account credit unless a test says otherwise.
+        $this->payments->shouldReceive('applyCredits')->andReturn([])->byDefault();
+
+        Functions\when('wp_generate_uuid4')->justReturn('abcdef12-3456-7890-abcd-ef1234567890');
+
+        $student             = Mockery::mock(\WP_User::class);
+        $student->user_email = '[email protected]';
+        Functions\when('get_userdata')->justReturn($student);
+
+        $this->runner = new ScheduledBillingRunner(
+            $this->payments,
+            $this->bookings,
+            $this->enrollments,
+            $this->offerings,
+            $this->mailer
+        );
+    }
+
+    private function now(string $mysql): void
+    {
+        Functions\when('current_time')->justReturn($mysql);
+    }
+
+    private function pending(int $id, string $due): Payment
+    {
+        return new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, 'CAD', Payment::METHOD_ETRANSFER, Payment::STATUS_PENDING, dueDate: $due, id: $id);
+    }
+
+    private function lessonRow(int $id, string $mode, string $start, float $price, int $offeringId = 9): object
+    {
+        return (object) [
+            'id'              => (string) $id,
+            'student_id'      => '5',
+            'instructor_id'   => '3',
+            'offering_id'     => (string) $offeringId,
+            'start_dt'        => $start,
+            'billing_mode'    => $mode,
+            'title'           => 'Piano',
+            'price'           => (string) $price,
+            'currency'        => 'CAD',
+            'etransfer_email' => '[email protected]',
+        ];
+    }
+
+    public function testPrivateWeeklyBillsLessonWithin24h(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-15 18:00:00', 35.0) ]);
+
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_LESSON, 101, 5, 3, 35.0, 'CAD', '[email protected]', '2026-07-14', '2026-07-15')
+            ->andReturn($this->pending(500, '2026-07-14'));
+
+        $this->mailer->shouldReceive('send')->once();
+
+        $this->runner->run();
+    }
+
+    public function testPrivateWeeklySkipsLessonBeyond24h(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-18 18:00:00', 35.0) ]);
+
+        $this->payments->shouldNotReceive('createForRegistration');
+        $this->mailer->shouldNotReceive('send');
+
+        $this->runner->run();
+    }
+
+    public function testPrivateMonthlyGroupsLessonsIntoOnePayment(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')->andReturn([
+            $this->lessonRow(201, Offering::BILLING_MONTHLY, '2026-07-07 18:00:00', 30.0),
+            $this->lessonRow(202, Offering::BILLING_MONTHLY, '2026-07-14 18:00:00', 30.0),
+            $this->lessonRow(203, Offering::BILLING_MONTHLY, '2026-07-21 18:00:00', 30.0),
+        ]);
+
+        // One payment for the month: 3 x 30, due on the 1st, linked to the earliest.
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_LESSON, 201, 5, 3, 90.0, 'CAD', '[email protected]', '2026-07-01', '2026-07')
+            ->andReturn($this->pending(600, '2026-07-01'));
+
+        // The other two lessons are pointed at the same payment so they are not re-billed.
+        $this->bookings->shouldReceive('setPaymentId')->once()->with(202, 600);
+        $this->bookings->shouldReceive('setPaymentId')->once()->with(203, 600);
+
+        $this->runner->run();
+    }
+
+    public function testPrivateMonthlySkipsFutureMonth(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(301, Offering::BILLING_MONTHLY, '2026-08-04 18:00:00', 30.0) ]);
+
+        $this->payments->shouldNotReceive('createForRegistration');
+
+        $this->runner->run();
+    }
+
+    public function testGroupWeeklyBillsDueSessionsOnly(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $enrollment = new Enrollment(offeringId: 9, studentId: 5, instructorId: 3, id: 44);
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([ $enrollment ]);
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn($this->groupOffering(Offering::BILLING_WEEKLY, '2026-07-07', '2026-07-21'));
+
+        // Sessions Jul 7 (due Jul 6) and Jul 14 (due Jul 13) are due by Jul 15; Jul 21 is not.
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07-07')->andReturn(false);
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07-14')->andReturn(false);
+
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_ENROLLMENT, 44, 5, 3, 20.0, 'CAD', null, '2026-07-06', '2026-07-07')
+            ->andReturn($this->pending(700, '2026-07-06'));
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_ENROLLMENT, 44, 5, 3, 20.0, 'CAD', null, '2026-07-13', '2026-07-14')
+            ->andReturn($this->pending(701, '2026-07-13'));
+
+        $this->runner->run();
+    }
+
+    public function testGroupWeeklyDedupSkipsExistingPeriod(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $enrollment = new Enrollment(offeringId: 9, studentId: 5, instructorId: 3, id: 44);
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([ $enrollment ]);
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn($this->groupOffering(Offering::BILLING_WEEKLY, '2026-07-07', '2026-07-21'));
+
+        // First session already billed; only the second generates a payment.
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07-07')->andReturn(true);
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07-14')->andReturn(false);
+
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_ENROLLMENT, 44, 5, 3, 20.0, 'CAD', null, '2026-07-13', '2026-07-14')
+            ->andReturn($this->pending(701, '2026-07-13'));
+
+        $this->runner->run();
+    }
+
+    /**
+     * A monthly group class is priced per month, not per session: the same fee
+     * is charged whether the class meets four times in the month or once. This
+     * is what the class card quotes and what the student agrees to pay.
+     */
+    public function testGroupMonthlyBillsTheMonthlyFeeOnceHoweverManySessions(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $enrollment = new Enrollment(offeringId: 9, studentId: 5, instructorId: 3, id: 44);
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([ $enrollment ]);
+        // 4 Tuesday sessions in July.
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn($this->groupOffering(Offering::BILLING_MONTHLY, '2026-07-07', '2026-07-28'));
+
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07')->andReturn(false);
+
+        // One payment of the monthly fee — not 4 x 20 — due on the 1st.
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_ENROLLMENT, 44, 5, 3, 20.0, 'CAD', null, '2026-07-01', '2026-07')
+            ->andReturn($this->pending(800, '2026-07-01'));
+
+        $this->runner->run();
+    }
+
+    /**
+     * The per-month fee does not shrink for a short month either — a month with
+     * a single session is billed the same as a month with four.
+     */
+    public function testGroupMonthlyBillsTheSameFeeForAMonthWithOneSession(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $enrollment = new Enrollment(offeringId: 9, studentId: 5, instructorId: 3, id: 44);
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([ $enrollment ]);
+        // A single July session.
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn($this->groupOffering(Offering::BILLING_MONTHLY, '2026-07-07', '2026-07-07'));
+
+        $this->payments->shouldReceive('scheduledPaymentExists')->with(Payment::REG_ENROLLMENT, 44, '2026-07')->andReturn(false);
+
+        $this->payments->shouldReceive('createForRegistration')
+            ->once()
+            ->with(Payment::REG_ENROLLMENT, 44, 5, 3, 20.0, 'CAD', null, '2026-07-01', '2026-07')
+            ->andReturn($this->pending(800, '2026-07-01'));
+
+        $this->runner->run();
+    }
+
+    public function testCompPaymentIsNotBucketed(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-15 18:00:00', 35.0) ]);
+
+        // A comp student's payment comes back paid — no due notice should be sent.
+        $comp = new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, 'CAD', Payment::METHOD_COMP, Payment::STATUS_PAID, dueDate: '2026-07-14', id: 900);
+        $this->payments->shouldReceive('createForRegistration')->once()->andReturn($comp);
+
+        $this->mailer->shouldNotReceive('send');
+
+        $this->runner->run();
+    }
+
+    public function testConsolidatesAllItemsIntoOneEmailPerStudent(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-15 18:00:00', 35.0) ]);
+        $enrollment = new Enrollment(offeringId: 9, studentId: 5, instructorId: 3, id: 44);
+        $this->enrollments->shouldReceive('findActiveByBillingModes')->andReturn([ $enrollment ]);
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn($this->groupOffering(Offering::BILLING_WEEKLY, '2026-07-14', '2026-07-14'));
+
+        $this->payments->shouldReceive('scheduledPaymentExists')->andReturn(false);
+        $this->payments->shouldReceive('createForRegistration')->andReturn($this->pending(500, '2026-07-14'), $this->pending(501, '2026-07-13'));
+
+        // Same student billed twice in one run -> exactly one email with both items,
+        // and both payments tagged with one shared notice-batch reference.
+        $this->payments->shouldReceive('assignNoticeBatch')
+            ->once()
+            ->with(Mockery::on(static fn (array $ids): bool => count($ids) === 2), Mockery::type('string'));
+        $this->mailer->shouldReceive('send')
+            ->once()
+            ->with(Mockery::type(\WP_User::class), Mockery::on(static fn (array $items): bool => count($items) === 2), Mockery::type('string'), 0.0);
+
+        $this->runner->run();
+    }
+
+    public function testAppliesAccountCreditToTheRun(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-15 18:00:00', 35.0) ]);
+
+        $payment = $this->pending(500, '2026-07-14');
+        $this->payments->shouldReceive('createForRegistration')->once()->andReturn($payment);
+
+        // Student holds $20 credit, applied to the one $35 charge — still $15 owing,
+        // so the payment stays in the notice batch and the notice quotes the credit.
+        $this->payments->shouldReceive('applyCredits')
+            ->once()
+            ->with(5, Mockery::on(static fn (array $p): bool => count($p) === 1))
+            ->andReturn([500 => 20.0]);
+        $this->payments->shouldReceive('assignNoticeBatch')
+            ->once()
+            ->with([500], Mockery::type('string'));
+        $this->mailer->shouldReceive('send')
+            ->once()
+            ->with(Mockery::type(\WP_User::class), Mockery::type('array'), Mockery::type('string'), 20.0);
+
+        $this->runner->run();
+    }
+
+    public function testCreditFullyCoveringAChargeLeavesItOutOfTheBatch(): void
+    {
+        $this->now('2026-07-15 09:00:00');
+        $this->bookings->shouldReceive('findUnbilledScheduledLessons')
+            ->andReturn([ $this->lessonRow(101, Offering::BILLING_WEEKLY, '2026-07-15 18:00:00', 35.0) ]);
+
+        $payment = $this->pending(500, '2026-07-14');
+        $this->payments->shouldReceive('createForRegistration')->once()->andReturn($payment);
+
+        // Credit covers the whole $35 charge: nothing owing, so no reconciliation
+        // batch and no reference on the (zero-balance) notice.
+        $this->payments->shouldReceive('applyCredits')->once()->andReturn([500 => 35.0]);
+        $this->payments->shouldReceive('assignNoticeBatch')->once()->with([], '');
+        $this->mailer->shouldReceive('send')
+            ->once()
+            ->with(Mockery::type(\WP_User::class), Mockery::type('array'), '', 35.0);
+
+        $this->runner->run();
+    }
+
+    private function groupOffering(string $mode, string $termStart, string $termEnd): Offering
+    {
+        return new Offering(
+            instructorId:    3,
+            kind:            Offering::KIND_GROUP_CLASS,
+            title:           'Ensemble',
+            price:           20.0,
+            currency:        'CAD',
+            billingMode:     $mode,
+            durationMinutes: 60,
+            termStart:       $termStart,
+            termEnd:         $termEnd,
+            classTime:       '16:00:00',
+            id:              9,
+        );
+    }
+}

tests/Unit/Policy/PolicyControllerTest.php

@@ -0,0 +1,256 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Policy;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Policy\Policy;
+use Unsupervised\Schedular\Policy\PolicyController;
+use Unsupervised\Schedular\Policy\PolicyRepository;
+use Unsupervised\Schedular\Policy\PolicyService;
+use Unsupervised\Schedular\Policy\PolicyVersion;
+use Unsupervised\Schedular\Policy\PolicyVersionRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class PolicyControllerTest extends TestCase
+{
+    private PolicyRepository&Mockery\MockInterface $policies;
+    private PolicyVersionRepository&Mockery\MockInterface $versions;
+    private PolicyService&Mockery\MockInterface $service;
+    private PolicyController $controller;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->policies   = Mockery::mock(PolicyRepository::class);
+        $this->versions   = Mockery::mock(PolicyVersionRepository::class);
+        $this->service    = Mockery::mock(PolicyService::class);
+        $this->controller = new PolicyController($this->policies, $this->versions, $this->service);
+
+        $_POST = [];
+        $_GET  = [];
+
+        Functions\when('current_user_can')->justReturn(true);
+        Functions\when('check_admin_referer')->justReturn(true);
+        Functions\when('wp_unslash')->returnArg();
+        Functions\when('sanitize_text_field')->returnArg();
+        Functions\when('sanitize_title')->returnArg();
+        Functions\when('wp_kses_post')->returnArg();
+        $this->stubAutop();
+        Functions\when('sanitize_key')->alias(
+            static fn ($key) => strtolower((string) preg_replace('/[^a-zA-Z0-9_\-]/', '', (string) $key))
+        );
+        Functions\when('absint')->alias(static fn ($value) => abs((int) $value));
+        Functions\when('selected')->justReturn('');
+        Functions\when('wp_nonce_field')->justReturn('');
+        Functions\when('admin_url')->justReturn('admin.php');
+        Functions\when('add_query_arg')->alias(
+            static fn (array $args, string $url) => $url . '?' . http_build_query($args)
+        );
+        Functions\when('submit_button')->alias(static function (string $text = ''): void {
+            echo $text; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- test stub
+        });
+    }
+
+    public function testViewingAVersionRendersItsBodyAndAnEditForm(): void
+    {
+        $policy  = new Policy('Cancellation', 'cancellation', currentVersionId: 7, id: 4);
+        $version = new PolicyVersion(
+            policyId: 4,
+            versionNumber: 2,
+            body: '<p>Cancel 24 hours ahead.</p>',
+            status: PolicyVersion::STATUS_PUBLISHED,
+            publishedAt: '2026-07-01 09:00:00',
+            id: 7,
+        );
+
+        $_GET = [
+            'policy_id'  => '4',
+            'version_id' => '7',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([$version]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($version);
+
+        $html = $this->render();
+
+        self::assertStringContainsString('Cancel 24 hours ahead.', $html);
+        self::assertStringContainsString('value="edit_version"', $html);
+        self::assertStringContainsString('Save as New Draft', $html);
+    }
+
+    public function testVersionListLinksToTheViewer(): void
+    {
+        $policy  = new Policy('Cancellation', 'cancellation', currentVersionId: 7, id: 4);
+        $version = new PolicyVersion(policyId: 4, versionNumber: 2, body: 'text', id: 7);
+
+        $_GET = ['policy_id' => '4'];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([$version]);
+
+        $html = $this->render();
+
+        self::assertStringContainsString('page=us-policies&policy_id=4&version_id=7', $html);
+    }
+
+    public function testAVersionBelongingToAnotherPolicyIsNotShown(): void
+    {
+        $policy = new Policy('Cancellation', 'cancellation', id: 4);
+        $other  = new PolicyVersion(policyId: 9, versionNumber: 1, body: 'Someone else\'s policy', id: 7);
+
+        $_GET = [
+            'policy_id'  => '4',
+            'version_id' => '7',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($other);
+
+        $html = $this->render();
+
+        self::assertStringNotContainsString('Someone else\'s policy', $html);
+        self::assertStringNotContainsString('value="edit_version"', $html);
+    }
+
+    public function testEditingAPublishedVersionCreatesANewDraftAndLeavesTheSourceUntouched(): void
+    {
+        $policy    = new Policy('Cancellation', 'cancellation', currentVersionId: 7, id: 4);
+        $published = new PolicyVersion(
+            policyId: 4,
+            versionNumber: 2,
+            body: '<p>Old text.</p>',
+            status: PolicyVersion::STATUS_PUBLISHED,
+            id: 7,
+        );
+        $draft = new PolicyVersion(policyId: 4, versionNumber: 3, body: '<p>New text.</p>', id: 11);
+
+        $_GET  = ['policy_id' => '4'];
+        $_POST = [
+            'usc_action' => 'edit_version',
+            'policy_id'  => '4',
+            'version_id' => '7',
+            'body'       => '<p>New text.</p>',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([$draft, $published]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($published);
+        $this->versions->shouldReceive('findById')->with(11)->andReturn($draft);
+
+        // A new draft is written; the edited version itself is never updated.
+        $this->service->shouldReceive('addDraftVersion')->once()->with(4, '<p>New text.</p>')->andReturn(11);
+        $this->versions->shouldNotReceive('updateBody');
+
+        $html = $this->render();
+
+        // The viewer follows through to the draft that was just created.
+        self::assertStringContainsString('New text.', $html);
+        self::assertStringContainsString('saved as a new draft version', $html);
+    }
+
+    public function testEditingADraftVersionUpdatesItInPlace(): void
+    {
+        $policy = new Policy('Cancellation', 'cancellation', id: 4);
+        $draft  = new PolicyVersion(
+            policyId: 4,
+            versionNumber: 3,
+            body: '<p>Old draft text.</p>',
+            status: PolicyVersion::STATUS_DRAFT,
+            id: 11,
+        );
+
+        $_GET  = ['policy_id' => '4'];
+        $_POST = [
+            'usc_action' => 'edit_version',
+            'policy_id'  => '4',
+            'version_id' => '11',
+            'body'       => '<p>Revised draft text.</p>',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([$draft]);
+        $this->versions->shouldReceive('findById')->with(11)->andReturn($draft);
+
+        // An unpublished draft is rewritten rather than branched.
+        $this->versions->shouldReceive('updateBody')->once()->with(11, '<p>Revised draft text.</p>')->andReturn(true);
+        $this->service->shouldNotReceive('addDraftVersion');
+
+        $html = $this->render();
+
+        self::assertStringContainsString('Draft version 3 was updated', $html);
+    }
+
+    public function testEditingAnArchivedVersionCreatesANewDraft(): void
+    {
+        $policy   = new Policy('Cancellation', 'cancellation', currentVersionId: 9, id: 4);
+        $archived = new PolicyVersion(
+            policyId: 4,
+            versionNumber: 1,
+            body: '<p>Superseded text.</p>',
+            status: PolicyVersion::STATUS_ARCHIVED,
+            id: 7,
+        );
+        $draft = new PolicyVersion(policyId: 4, versionNumber: 4, body: '<p>Reinstated text.</p>', id: 12);
+
+        $_GET  = ['policy_id' => '4'];
+        $_POST = [
+            'usc_action' => 'edit_version',
+            'policy_id'  => '4',
+            'version_id' => '7',
+            'body'       => '<p>Reinstated text.</p>',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([$draft, $archived]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($archived);
+        $this->versions->shouldReceive('findById')->with(12)->andReturn($draft);
+
+        $this->service->shouldReceive('addDraftVersion')->once()->with(4, '<p>Reinstated text.</p>')->andReturn(12);
+        $this->versions->shouldNotReceive('updateBody');
+
+        $this->render();
+    }
+
+    public function testEditingAVersionOfAnotherPolicyIsRejected(): void
+    {
+        $policy = new Policy('Cancellation', 'cancellation', id: 4);
+        $other  = new PolicyVersion(policyId: 9, versionNumber: 1, body: 'Other', id: 7);
+
+        $_GET  = ['policy_id' => '4'];
+        $_POST = [
+            'usc_action' => 'edit_version',
+            'policy_id'  => '4',
+            'version_id' => '7',
+            'body'       => 'Injected text',
+        ];
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->policies->shouldReceive('findById')->with(4)->andReturn($policy);
+        $this->versions->shouldReceive('findByPolicy')->with(4)->andReturn([]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($other);
+
+        $this->service->shouldNotReceive('addDraftVersion');
+        $this->versions->shouldNotReceive('updateBody');
+
+        $this->render();
+    }
+
+    private function render(): string
+    {
+        ob_start();
+        $this->controller->renderPage();
+
+        return (string) ob_get_clean();
+    }
+}

tests/Unit/Policy/PolicyEndpointTest.php

@@ -0,0 +1,92 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Policy;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Policy\Policy;
+use Unsupervised\Schedular\Policy\PolicyEndpoint;
+use Unsupervised\Schedular\Policy\PolicyRepository;
+use Unsupervised\Schedular\Policy\PolicyService;
+use Unsupervised\Schedular\Policy\PolicyVersion;
+use Unsupervised\Schedular\Policy\PolicyVersionRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class PolicyEndpointTest extends TestCase
+{
+    private PolicyRepository&Mockery\MockInterface $policies;
+    private PolicyVersionRepository&Mockery\MockInterface $versions;
+    private PolicyService&Mockery\MockInterface $service;
+    private PolicyEndpoint $endpoint;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Functions\when('sanitize_text_field')->returnArg();
+        Functions\when('sanitize_title')->returnArg();
+        Functions\when('wp_kses_post')->returnArg();
+        $this->stubAutop();
+
+        $this->policies = Mockery::mock(PolicyRepository::class);
+        $this->versions = Mockery::mock(PolicyVersionRepository::class);
+        $this->service  = Mockery::mock(PolicyService::class);
+        $this->endpoint = new PolicyEndpoint(
+            $this->policies,
+            $this->versions,
+            $this->service,
+        );
+    }
+
+    public function testIndexReturnsPlainTextBodiesAsParagraphs(): void
+    {
+        $policy  = new Policy('Cancellation', 'cancellation', currentVersionId: 7, id: 4);
+        $version = new PolicyVersion(
+            policyId: 4,
+            versionNumber: 2,
+            body: "Give 24 hours notice.\n\nLate cancellations are billed in full.",
+            status: PolicyVersion::STATUS_PUBLISHED,
+            id: 7,
+        );
+
+        $this->policies->shouldReceive('findAll')->andReturn([$policy]);
+        $this->versions->shouldReceive('findById')->with(7)->andReturn($version);
+
+        $body = $this->endpoint->index(new \WP_REST_Request([]))->get_data();
+
+        // The admin typed no markup, so the gate still receives real paragraphs
+        // rather than one unbroken run of text.
+        self::assertSame(
+            '<p>Give 24 hours notice.</p><p>Late cancellations are billed in full.</p>',
+            $body[0]['body']
+        );
+    }
+
+    public function testCreateRejectsTitleLongerThanColumnLimit(): void
+    {
+        $this->service->shouldNotReceive('createPolicy');
+
+        $request  = new \WP_REST_Request([
+            'title' => str_repeat('a', Policy::MAX_TITLE_LENGTH + 1),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_Error::class, $response);
+        self::assertSame(400, $response->error_data['invalid_policy']['status']);
+    }
+
+    public function testCreateRejectsSlugLongerThanColumnLimit(): void
+    {
+        $this->service->shouldNotReceive('createPolicy');
+
+        $request  = new \WP_REST_Request([
+            'title' => 'Cancellation',
+            'slug'  => str_repeat('a', Policy::MAX_SLUG_LENGTH + 1),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_Error::class, $response);
+        self::assertSame(400, $response->error_data['invalid_policy']['status']);
+    }
+}

tests/Unit/Policy/PolicyValueObjectsTest.php

@@ -27,6 +27,16 @@ class PolicyValueObjectsTest extends TestCase
         self::assertArrayHasKey('acceptance_scope', $policy->toArray());
     }
 
+    public function testAnEmptyBodyRendersAsNothingRatherThanAnEmptyParagraph(): void
+    {
+        \Brain\Monkey\Functions\when('wp_kses_post')->returnArg();
+        $this->stubAutop();
+
+        $version = new PolicyVersion(policyId: 4, versionNumber: 1, body: null);
+
+        self::assertSame('', $version->bodyHtml());
+    }
+
     public function testPolicyHandlesNullCurrentVersion(): void
     {
         $policy = Policy::fromRow((object) [

tests/Unit/Registration/QuestionEndpointTest.php

@@ -0,0 +1,70 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Registration;
+
+use Brain\Monkey\Functions;
+use Mockery;
+use Unsupervised\Schedular\Offering\Offering;
+use Unsupervised\Schedular\Offering\OfferingRepository;
+use Unsupervised\Schedular\Registration\Question;
+use Unsupervised\Schedular\Registration\QuestionEndpoint;
+use Unsupervised\Schedular\Registration\QuestionRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class QuestionEndpointTest extends TestCase
+{
+    private QuestionRepository&Mockery\MockInterface $questions;
+    private OfferingRepository&Mockery\MockInterface $offerings;
+    private QuestionEndpoint $endpoint;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Functions\when('get_current_user_id')->justReturn(5);
+        Functions\when('current_user_can')->justReturn(false);
+        Functions\when('absint')->alias(static fn ($v): int => abs((int) $v));
+        Functions\when('sanitize_text_field')->returnArg();
+
+        $this->questions = Mockery::mock(QuestionRepository::class);
+        $this->offerings = Mockery::mock(OfferingRepository::class);
+        $this->endpoint  = new QuestionEndpoint($this->questions, $this->offerings);
+
+        // The caller (instructor 5) owns offering 9, so the ownership gate passes
+        // and validation is reached.
+        $this->offerings->shouldReceive('findById')->with(9)->andReturn(
+            new Offering(instructorId: 5, kind: Offering::KIND_GROUP_CLASS, title: 'Choir', id: 9)
+        );
+    }
+
+    public function testCreateRejectsLabelLongerThanColumnLimit(): void
+    {
+        // The insert must never be attempted for an over-long label — the bug was
+        // that it reached the DB, silently failed, and returned success anyway.
+        $this->questions->shouldNotReceive('insert');
+
+        $request  = new \WP_REST_Request([
+            'offering_id' => 9,
+            'label'       => str_repeat('a', Question::MAX_LABEL_LENGTH + 1),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_Error::class, $response);
+        self::assertSame(400, $response->error_data['invalid_question']['status']);
+    }
+
+    public function testCreateAcceptsLabelAtColumnLimit(): void
+    {
+        $this->questions->shouldReceive('insert')->once()->andReturn(42);
+
+        $request  = new \WP_REST_Request([
+            'offering_id' => 9,
+            'label'       => str_repeat('a', Question::MAX_LABEL_LENGTH),
+        ]);
+        $response = $this->endpoint->create($request);
+
+        self::assertInstanceOf(\WP_REST_Response::class, $response);
+        self::assertSame(201, $response->get_status());
+    }
+}

tests/Unit/Registration/QuestionRepositoryTest.php

@@ -212,4 +212,28 @@ class QuestionRepositoryTest extends TestCase
 
         self::assertTrue($this->repo->delete(4));
     }
+
+    public function testEnsureOfferingNullableRunsAlterAndReportsSuccess(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/ALTER TABLE %i MODIFY offering_id .*NULL/'), 'wp_us_questions')
+            ->andReturn('ALTER TABLE `wp_us_questions` MODIFY offering_id BIGINT UNSIGNED NULL DEFAULT NULL');
+
+        $this->db->shouldReceive('query')
+            ->once()
+            ->with('ALTER TABLE `wp_us_questions` MODIFY offering_id BIGINT UNSIGNED NULL DEFAULT NULL')
+            ->andReturn(0);
+
+        // A successful DDL query returns 0 rows affected (not false).
+        self::assertTrue($this->repo->ensureOfferingNullable());
+    }
+
+    public function testEnsureOfferingNullableReportsFailureWhenQueryFails(): void
+    {
+        $this->db->shouldReceive('prepare')->once()->andReturn('ALTER ...');
+        $this->db->shouldReceive('query')->once()->andReturn(false);
+
+        self::assertFalse($this->repo->ensureOfferingNullable());
+    }
 }

tests/Unit/ShortcodeRegistrarTest.php

@@ -23,6 +23,9 @@ class ShortcodeRegistrarTest extends TestCase
     /** @var array<string, callable> */
     private array $shortcodes = [];
 
+    /** @var array<string, mixed> */
+    private array $localized = [];
+
     protected function setUp(): void
     {
         parent::setUp();
@@ -84,6 +87,69 @@ class ShortcodeRegistrarTest extends TestCase
         self::assertSame('group', $this->shortcodes['us_group_classes'](''));
     }
 
+    /**
+     * The booking and group-class scripts both read prices through the shared
+     * pricing helper, so it must be registered ahead of them (and behind the
+     * payment helper, which carries the localized config it reads).
+     */
+    public function testPricingHelperIsRegisteredAheadOfTheBookingAndGroupScripts(): void
+    {
+        $scripts = $this->captureEnqueuedAssets();
+
+        self::assertSame(['us-scheduler-payment'], $scripts['us-scheduler-pricing']);
+        self::assertSame(['us-scheduler-pricing'], $scripts['us-scheduler']);
+        self::assertSame(['us-scheduler-pricing'], $scripts['us-scheduler-group']);
+    }
+
+    /**
+     * The studio HST rate reaches the front end so a price quoted on a booking
+     * form matches the total the student is actually billed.
+     */
+    public function testStudioTaxRateIsLocalizedToTheFrontEnd(): void
+    {
+        $this->captureEnqueuedAssets();
+
+        self::assertSame(13.0, $this->localized['taxRate']);
+    }
+
+    /**
+     * @return array<string, array<int, string>> Registered script handle => dependencies.
+     */
+    private function captureEnqueuedAssets(): array
+    {
+        $scripts   = [];
+        $localized = &$this->localized;
+
+        Functions\when('wp_register_style')->justReturn(true);
+        Functions\when('rest_url')->justReturn('https://example.test/wp-json/us-scheduler/v1/');
+        Functions\when('wp_create_nonce')->justReturn('nonce');
+        Functions\when('get_option')->alias(
+            static fn (string $name, mixed $default = false): mixed => match ($name) {
+                'us_hst_rate' => '13',
+                'start_of_week' => 1,
+                default => $default,
+            }
+        );
+        Functions\when('wp_register_script')->alias(
+            static function (string $handle, string $src, array $deps = []) use (&$scripts): bool {
+                $scripts[$handle] = $deps;
+
+                return true;
+            }
+        );
+        Functions\when('wp_localize_script')->alias(
+            static function (string $handle, string $object, array $data) use (&$localized): bool {
+                $localized = $data;
+
+                return true;
+            }
+        );
+
+        $this->registrar->enqueueAssets();
+
+        return $scripts;
+    }
+
     public function testShortcodeAttributesArePassedThroughUnchanged(): void
     {
         $this->registrar->register();