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

https://mega-wiki.win/index.php/I_Got_Charged_for_SuperGrok_and_I_Don%27t_Recognize_It_%E2%80%94_What_Now%3F

If Apple billed you for a SuperGrok subscription and you want a refund, visit reportaproblem.apple.com to request one. Remember, canceling your subscription in iOS settings stops future payments but doesn’t refund past charges