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

https://wiki-planet.win/index.php/SuperGrok_Refund:_Should_I_Contact_Apple_Support_or_Use_the_Website%3F

If you want a refund for SuperGrok, first double-check who charged you—sometimes it’s billed through Apple or directly by the app. Look in your iOS Subscriptions to confirm. Remember, canceling won’t automatically give you a refund