To cancel your ChatGPT subscription, make sure you do it through the same...
https://sierra-wiki.win/index.php/I_Canceled_ChatGPT_But_Got_Charged_Again_-_What_Are_the_Real_Causes%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, Google Play, a Business account, or API