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

https://wiki-fusion.win/index.php/Reportaproblem.apple.com_Not_Working_for_Me_%E2%80%94_What_Should_I_Try%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