To cancel your ChatGPT subscription, make sure you do it through the same...

https://garrettwigp625.tearosediner.net/what-does-manage-on-the-app-store-mean-in-chatgpt-settings

To cancel your ChatGPT subscription, make sure you do it through the same channel you used to subscribe—whether that’s the web (Stripe), Apple, Google Play, Business, or API