If you want a refund for SuperGrok, first double-check who charged you—Apple or...

https://mag-wiki.win/index.php/How_Do_I_Use_reportaproblem.apple.com_for_a_Subscription_Refund%3F

If you want a refund for SuperGrok, first double-check who charged you—Apple or a third party. On your iPhone, review your active subscriptions in Settings to confirm. Remember, just canceling doesn’t get your money back