I am also having the same problem. I believe that in my case my account was disabled because I have typed too many times a gift card code that was already used. The only reply I got pro apple support was far from ideal... I am really disappointed as well with the customer service... I have more than 300 dollars worth of apps, 80 dollars in my apple id and I can't update them and not even download new stuff, therefore changing my apple ID is not an option! Already four days and counting waiting for a solution...
Look at the answers from customer support...
"Welcome back to iTunes Store Customer Support and I appreciate your time and patience to writ back to us. This is (name of the customer service employee) again.
(My name), I can certainly understand how eager you are to get your account reenabled at the earliest as possible.
However, please note that Apple is still working toward a resolution for the issue you have reported. You will receive an email after the matter has been investigated and further information is available.
Thank you for your patience. Apple wants your iTunes experience to be as enjoyable as possible.
Sincerely,"