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

https://wiki-quicky.win/index.php/Can_I_Export_My_ChatGPT_History_After_I_Cancel%3F

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