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

https://wiki-net.win/index.php/Can_I_Request_a_SuperGrok_Refund_from_SuperGrok_Support_if_Apple_Billed_Me%3F

If you want a refund for SuperGrok, first double-check who billed you—sometimes charges come through Apple, other times directly from the app. Look at your iOS Subscriptions to see if it’s listed there