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

https://www.bookmark-jungle.win/if-you-want-a-refund-for-supergrok-first-double-check-your-billing-info-to

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