My iphone died and it won't turn back on?

It died last night and I put it on the charger and nothing happens not even the battery symbol comes up. I do have the iOS 7. I can't restart it because my home button doesn't work and i have to use assistive touch. It won't show up on itunes when i tried to plug it in. It's not the charger because it works on my other i-devices. I have an iphone 4.

Added (1). I have like 4 months on my contract. I NEED MY PHONE NOW. I feel like I just lost a limb.
-Dramatic Teenage Girl

If your contract is up I wouldn't mess with fixing an older phone, you can now trade it in and get $ back, so use that as part of an upgrade instead to get a new phone instead of fixing the old.