my account is blocked and my requests to get it back get denied

My account (not this one) is blocked because microsoft thinks that someone else is using it, and all my requests to get my account back get denied. Is there any way to prove that I'm really the owner? I don't have any credit card connected and never sent any emails so it's hard to fill in the form they ask you to. They ask for more information but don't leave a place to give more information, I filled in everything I can, but I get denied... Can I call to a telephone number or so and explain everything about my account better?  I really need access to my account because my facebook, runescape, etc is connected to it.