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

https://www.pfdbookmark.win/if-you-want-a-refund-for-supergrok-first-double-check-who-charged-your-account

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