If you want a refund for SuperGrok, first make sure Apple actually billed...

https://alpha-wiki.win/index.php/What_Is_the_Exact_Site_to_Request_a_SuperGrok_Refund_from_Apple%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you—sometimes charges come from different accounts. Check your iOS Subscriptions to confirm. Remember, canceling the app doesn’t automatically give you money back