If Apple billed you for your SuperGrok subscription and you want a refund,...

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

If Apple billed you for your SuperGrok subscription and you want a refund, visit reportaproblem.apple.com and sign in with your Apple ID. Find your SuperGrok subscription under iOS Subscriptions, then request a refund