If Apple billed you for your SuperGrok subscription and you need a refund,...

https://wiki-spirit.win/index.php/Where_Do_I_Go_to_Refund_a_SuperGrok_Subscription_on_iPhone%3F

If Apple billed you for your SuperGrok subscription and you need a refund, visit reportaproblem.apple.com and sign in. Go to the iOS Subscriptions section, find SuperGrok, and request a refund there