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

https://victor-wiki.win/index.php/EU_14-Day_Right_for_ChatGPT_Refunds_%E2%80%93_How_Do_I_Ask_For_It%3F

To cancel your ChatGPT subscription, make sure you do it through the same billing channel you used to subscribe—whether that's the web, Apple, Google Play, Stripe, or a business/API plan