If Apple billed you for a SuperGrok subscription and you want a refund, visit...

https://wiki-fusion.win/index.php/How_Do_I_Cancel_a_Subscription_on_Console.x.ai%3F

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