If you want a refund for SuperGrok, first double-check who billed you—sometimes...

https://sierra-wiki.win/index.php/How_Do_I_Request_an_Apple_Refund_for_SuperGrok%3F

If you want a refund for SuperGrok, first double-check who billed you—sometimes charges come through Apple or the app developer. Then, look in your iOS Subscriptions to confirm your purchase