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

https://www.bookmark-suggest.win/to-cancel-grok-properly-make-sure-you-do-it-through-the-exact-billing-channel

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