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

https://www.bookmarkingqueen.win/if-you-want-a-refund-for-supergrok-first-check-who-charged-you-to-make-sure-it

If you want a refund for SuperGrok, first make sure Apple actually billed you—check your purchase history or iOS Subscriptions. Remember, canceling the subscription doesn’t refund past charges. To request a refund, go to reportaproblem.apple