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

https://victor-wiki.win/index.php/What_Reason_Should_I_Pick_for_a_SuperGrok_Refund_on_Apple%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your purchase history. Then, look under iOS Subscriptions to confirm your active charges