If you want a refund for SuperGrok, first make sure Apple actually billed you...

https://wiki-fusion.win/index.php/If_SuperGrok_Was_Billed_Directly,_Where_Do_I_Ask_for_a_Refund%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your purchase history or iOS Subscriptions. Remember, canceling the subscription won’t automatically give you a refund. To request one, go to reportaproblem.apple