Why does my account say its disabled?

We have no way of knowing, being just fellow users here. For assistance with a disabled account, see this support article:

http://support.apple.com/kb/TS2446

If that doesn't help, contact iTunes support via the link provided toward the bottom of that page.

Regards.

Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Communities page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums and in the Apple Knowledge Base, before you post a question.