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

https://zaneznae304.lucialpiazzale.com/how-do-i-write-the-refund-explanation-for-supergrok-without-getting-denied

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