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

https://www.emergbook.win/to-cancel-grok-properly-make-sure-you-do-so-through-the-exact-channel-where

If Apple billed your SuperGrok subscription, you can request a refund at reportaproblem.apple.com. Just sign in, find your purchase under iOS Subscriptions, and select "Report a Problem" to explain your issue