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

https://juliet-wiki.win/index.php/How_Do_I_Avoid_Accidentally_Paying_for_ChatGPT_Twice%3F

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