I have the right Apple ID and password, but iTunes won't let me get apps. I have money in the account. What's wrong?

We are fellow users here on these forums, we won't know what the problem might be unless you post information about what happens - what do you mean 'iTunes won't let me get apps', if you are getting an error message when trying to download an app then what does it say ?

If you are getting a message to contact iTunes Support then you can do so via this link and ask them why the message is appearing (we won't know why) : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption

If it's a different problem ... ?