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

https://wiki-book.win/index.php/Why_Does_the_ChatGPT_App_Still_Say_Auto-Renews_After_I_Canceled_on_iPhone%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 (Stripe), Apple App Store, Google Play, Business portal, or API