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

https://tango-wiki.win/index.php/Does_Deleting_My_OpenAI_Account_Cancel_ChatGPT_Billing%3F

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