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

https://www.4shared.com/office/3rwv2w8_ge/pdf-73301-13539.html

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