> ## Documentation Index
> Fetch the complete documentation index at: https://docs.postiz.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Billing (Cloud)

> Stripe.js blocked, billing page in incognito, discount errors

These apply to Postiz Cloud only.

## "Failed to load Stripe.js"

The billing page loads Stripe.js from `js.stripe.com`. If your browser
or an extension blocks it, the page can't render the checkout form.

**Fix**

* Whitelist `*.stripe.com` in your ad blocker / privacy extension.
* Allow third-party scripts on `platform.postiz.com`.
* Try a clean Chrome/Firefox profile to confirm it's an extension issue.

## Billing page is blank or throws errors

The billing page uses `localStorage` to cache plan state. In some private
/ incognito modes (Safari, Firefox strict mode) `localStorage` is null
and the page crashes on access.

**Fix:** open the billing page in a normal browser window.

## Discount code doesn't apply

Postiz validates discount codes server-side against Stripe. If apply
fails, double-check:

1. Spelling and case — codes are case-sensitive.
2. The code hasn't already been used or expired.
3. The code applies to the plan you're trying to upgrade to.

## Refunds & contact

For refund requests, billing questions, or anything that needs a human:

* **Discord:** [discord.postiz.com](https://discord.postiz.com) — `#support` channel.
* **GitHub:** [open an issue](https://github.com/gitroomhq/postiz-app/issues) for product bugs.
* **Email:** see the contact section on [postiz.com](https://postiz.com).