If Apple billed your SuperGrok subscription and you want a refund, go to...

https://high-wiki.win/index.php/I_Can%E2%80%99t_See_the_Cancel_Button_for_SuperGrok_in_Subscriptions:_What_to_Do

If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in. Navigate to iOS Subscriptions, find SuperGrok, and request a refund there