If Apple billed your SuperGrok subscription, go to reportaproblem.apple.com to...

https://ace-wiki.win/index.php/SuperGrok_Refund_Request:_What_Should_I_Say_in_the_Comments_Box%3F

If Apple billed your SuperGrok subscription, go to reportaproblem.apple.com to request a refund. You can also check your iOS Settings under Subscriptions to manage or cancel it, but remember canceling won’t automatically refund any charges