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

https://fernandowehn083.timeforchangecounselling.com/do-i-need-to-cancel-supergrok-before-requesting-an-apple-refund

If Apple billed your SuperGrok subscription and you want a refund, visit reportaproblem.apple.com and sign in with your Apple ID. Find SuperGrok under iOS Subscriptions and request a refund there