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

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

If Apple billed you for SuperGrok and you want a refund, go to reportaproblem.apple.com and sign in. Find SuperGrok under your iOS Subscriptions, then select "Report a Problem" to request a refund