To get a refund for your SuperGrok subscription billed by Apple, visit...

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

To get a refund for your SuperGrok subscription billed by Apple, visit reportaproblem.apple.com and sign in. Choose iOS Subscriptions, find SuperGrok, and select “Report a Problem” to request a refund