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

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—it could be through the iOS subscription system or another method. Check your subscriptions in Settings to confirm. Remember, canceling won’t automatically refund your payment