If Apple billed your SuperGrok subscription by mistake, you can request a...

https://www.pop-bookmarks.win/if-you-want-a-refund-for-supergrok-first-check-who-charged-you-it-s-usually

If Apple billed your SuperGrok subscription by mistake, you can request a refund at reportaproblem.apple.com. Go to your iOS Settings, tap your Apple ID, then Subscriptions, and find SuperGrok