If you want a refund for SuperGrok, first double-check who charged...

https://mag-wiki.win/index.php/How_Do_I_Use_reportaproblem.apple.com_for_a_Subscription_Refund%3F

If you want a refund for SuperGrok, first double-check who charged you—sometimes it’s through Apple, sometimes another service. Look in your iOS Subscriptions to confirm the billing