If Apple billed your SuperGrok subscription, go to reportaproblem.apple.com to...
https://www.list-bookmarks.win/if-apple-billed-your-supergrok-subscription-by-mistake-you-can-request-a
If Apple billed your SuperGrok subscription, go to reportaproblem.apple.com to request a refund. Navigate to iOS Subscriptions to find SuperGrok and submit your refund request there