If Apple billed your SuperGrok subscription, get a refund by visiting...

https://rapid-wiki.win/index.php/Which_Apple_ID_Do_I_Use_for_a_SuperGrok_Refund_Request%3F

If Apple billed your SuperGrok subscription, get a refund by visiting reportaproblem.apple.com. Navigate to iOS Subscriptions, find SuperGrok, and request a refund there