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

https://www.bookmarkpage.win/to-cancel-grok-correctly-make-sure-you-do-it-through-the-same-platform-you

If Apple billed your SuperGrok subscription and you want a refund, visit reportaproblem.apple.com. Sign in and choose your purchase under iOS Subscriptions. Keep in mind, canceling the subscription stops future charges but doesn’t refund past payments