> ## Documentation Index
> Fetch the complete documentation index at: https://docs.postqueen.ai/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 PostQueen 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 cannot render the checkout form.

**Fix**

* Whitelist `*.stripe.com` in your ad blocker / privacy extension.
* Allow third-party scripts on `app.postqueen.ai`.
* Try a clean Chrome/Firefox profile to confirm it is 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 does not apply

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

1. Spelling and case: codes are case-sensitive.
2. The code has not already been used or expired.
3. The code applies to the plan you are trying to upgrade to.

## Refunds & contact

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

* **Email:** [support@postqueen.ai](mailto:support@postqueen.ai) for refunds, billing, and account matters.
* **GitHub:** [open an issue](https://github.com/GkhanKINAY/postqueen-app/issues) for product bugs.