If Apple billed your SuperGrok subscription by mistake, visit...

https://tango-wiki.win/index.php/I_See_SuperGrok_in_Subscriptions_but_Not_in_reportaproblem.apple.com:_What%E2%80%99s_Going_On%3F

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. You can also manage or cancel subscriptions in Settings > [your name] > Subscriptions on your iPhone