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

https://www.bust-bookmark.win/if-apple-billed-your-supergrok-subscription-go-to-reportaproblem-apple-com-to

To get a refund for your SuperGrok subscription billed by Apple, visit reportaproblem.apple.com and log in with your Apple ID. Find SuperGrok under iOS Subscriptions, then select “Report a Problem” to request a refund