> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.zitli.ch/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Upgrading, payment, invoices and cancellation

## Upgrading to Pro

1. Open **Settings › Billing**.
2. Choose **monthly** (CHF 16) or **annual** (CHF 160, two months free).
3. Click **Upgrade to Pro** and pay on the secure payment page.

You can upgrade at any time, including in the middle of your trial. Your event types, calendar connections and settings are kept.

## Payment methods

TWINT, credit and debit cards, Apple Pay and Google Pay. Payment is processed by Stripe; Zitli does not see your card details.

## Invoices and VAT

All prices include Swiss VAT (8.1%). VAT is shown on every invoice. You can find your invoices under **Settings › Billing › Manage subscription**.

## Changing your payment method, switching between monthly and annual

Under **Settings › Billing › Manage subscription**. Payment method, invoices and cancellation are on a secure Stripe page.

## Payment failed

If your payment method could not be charged, Zitli shows «Payment failed». We will try again in a few days. Update your payment method under **Settings › Billing › Update payment method** to keep Pro.

## Cancelling

1. **Settings › Billing › Manage subscription**.
2. Cancel your subscription.

You keep Pro until the end of the paid period. After that, your account switches to Free. Nothing is deleted: additional event types stay saved and work again as soon as you upgrade to Pro again. While the period is still running, you can undo the cancellation with **«Keep my plan»**.

## What happens when you switch to Free?

- Only one event type remains bookable (the first visible one). The others stay saved.
- «Powered by Zitli» appears on the booking page again.
- Paid event types can no longer be booked online.
- AI assistants can only read, no longer make changes.

## Refunds and special cases

For questions about an invoice or a refund, write to [support@zitli.ch](mailto:support@zitli.ch).