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

https://domgodwinson38.gumroad.com/p/i-used-a-different-email-for-apple-id-could-that-hide-my-supergrok-subscription

If you want a refund for SuperGrok, first make sure Apple actually billed you. Check your iOS Subscriptions in Settings to confirm. Remember, canceling a subscription doesn’t automatically give you a refund. To request one, go to reportaproblem.apple