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

https://blast-wiki.win/index.php/Why_Do_I_Not_See_Billing_Options_in_ChatGPT_Business_as_an_Admin%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, Google Play, Business, or API