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

https://wiki-global.win/index.php/I_canceled_SuperGrok_but_Apple_didn%E2%80%99t_refund_me_-_why%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your purchase history or iOS Subscriptions. Remember, canceling the subscription won’t automatically give you a refund. To request one, go to reportaproblem.apple