If Apple billed your SuperGrok subscription, you can request a refund by...

https://wiki-neon.win/index.php/Is_There_a_Faster_Way_to_Get_an_Apple_Refund_for_SuperGrok%3F

If Apple billed your SuperGrok subscription, you can request a refund by visiting reportaproblem.apple.com and selecting the iOS Subscriptions section. Remember, canceling the subscription stops future charges but does not issue a refund automatically