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

https://www.bookmarkmaster.win/if-you-want-a-refund-for-supergrok-first-confirm-whether-apple-or-another

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