If Apple billed your SuperGrok subscription by mistake, you can request a...

https://tango-wiki.win/index.php/How_Do_I_Cancel_SuperGrok_if_I_Paid_on_grok.com%3F

If Apple billed your SuperGrok subscription by mistake, you can request a refund at reportaproblem.apple.com. Go to your iOS Settings, tap your Apple ID, then Subscriptions, and find SuperGrok