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

https://www.beacon-bookmarks.win/to-cancel-grok-correctly-use-the-same-billing-channel-where-you-signed-up

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