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

https://www.bookmarking-maze.win/if-you-want-a-refund-for-supergrok-first-double-check-who-billed-you-sometimes

If you want a refund for SuperGrok, first make sure Apple actually billed you for it. Check your iOS Subscriptions to see if it's active there. Remember, canceling won’t automatically get your money back. To request a refund, go to reportaproblem.apple