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

https://technivorz.com/what-refund-reason-should-i-pick-for-supergrok-on-apple/

If Apple billed your SuperGrok subscription, you can request a refund by going to reportaproblem.apple.com and signing in with your Apple ID. Find your SuperGrok purchase under iOS Subscriptions, then choose “Report a Problem” and follow the steps