If Apple billed your SuperGrok subscription by mistake, visit...
https://wiki-coast.win/index.php/I_Signed_Up_for_SuperGrok_and_Immediately_Regret_It_%E2%80%93_Can_I_Get_a_Refund%3F
If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund