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

https://foxtrot-wiki.win/index.php/What_Should_I_Do_If_I_Subscribed_on_Grok.com_but_Tried_to_Refund_on_Apple%3F

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. Go to your iOS Settings, tap your Apple ID, then Subscriptions to review charges