If Apple billed you for a SuperGrok subscription and you want a refund, visit...

https://www.bust-bookmark.win/if-you-want-a-refund-for-supergrok-first-double-check-who-charged-your

If Apple billed you for a SuperGrok subscription and you want a refund, visit reportaproblem.apple.com and sign in. Navigate to iOS Subscriptions, find SuperGrok, and request a refund there