iTunes gift Cards

Gift Cards

I would like to check the balance on 2 old iTunes gift cards. I can't log into my old itunes account as it says I need to answer 2 security questions and the answers I use come back as incorrect. I don't even remember setting up the security questions. It also says I can use a trusted phone number; however, I have a relatively new number. I am sure any phone number linked to this account no longer is my number. It has been a while since I used this account; however, I would like to use these cards if they have any funds left in them. How can I check them?