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

https://bizzmarkblog.com/how-do-i-request-an-apple-refund-for-supergrok/

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