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 channel you subscribed with—whether that’s the web (Stripe), Apple App Store, Google Play, Business portal, or API billing