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

https://instaquoteapp.com/if-i-cancel-chatgpt-on-day-3-of-a-30-day-cycle-how-many-days-do-i-keep-plus/

To cancel your ChatGPT subscription, be sure to do it through the same channel where you subscribed—whether that’s the web (Stripe), Apple App Store, Google Play, Business portal, or API