To cancel Grok properly, make sure you cancel through the same billing channel...

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

To cancel Grok properly, make sure you cancel through the same billing channel you signed up with—whether that’s grok.com (Stripe), Apple Subscriptions, Google Play, X Premium on x.com, console.x.ai for Business, or console.x