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

https://source-wiki.win/index.php/I_Canceled_SuperGrok_But_Apple_Didn%E2%80%99t_Refund_Me_%E2%80%93_Why%3F

If you want a refund for SuperGrok, first double-check who billed you—sometimes it’s Apple, other times it might be a third party. Look in your iOS Subscriptions settings to confirm