Q: gift card balance

I keep finding this post, but no one is answering!!  Did you figure it out?

my gift card number is **** . what is the balance please

<Personal Information Edited by Host>

You already know that we are fellow users on these user-to-user forums and that you aren't talking to iTunes Support nor Apple.

If the card has been redeemed the card itself is now used/empty, any balance that you have left from it will be on your account : See your iTunes credit balance - Apple Support

If it hasn't yet been redeemed, and as you've posted it on a public forum it might now have been (I've asked the hosts to remove it), the only way to know its balance (if it's not printed on it), is to redeem it