To get a refund for your SuperGrok subscription billed by Apple, visit...

https://www.acid-bookmarks.win/if-apple-charged-you-for-a-supergrok-subscription-go-to

To get a refund for your SuperGrok subscription billed by Apple, visit reportaproblem.apple.com and sign in with your Apple ID. Navigate to iOS Subscriptions, find SuperGrok, and request a refund