If Apple billed your SuperGrok subscription by mistake, visit...

https://www.seo-bookmarks.win/to-cancel-grok-make-sure-you-do-it-through-the-exact-channel-you-subscribed

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. Navigate to your iOS Subscriptions in Settings to find SuperGrok, but note that canceling the subscription does not automatically issue a refund