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

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

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com and sign in. Go to iOS Subscriptions, find SuperGrok, and request a refund. Remember, canceling the subscription stops future charges but doesn’t refund past payments