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

https://www.bookmarking-online.win/if-apple-billed-your-supergrok-subscription-and-you-want-a-refund-visit-1

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