iTunes Producer won't let me log in

I have downloaded iTunes Producer twice and tried about 30 times to log in. It keeps telling me that I have entered my Apple ID and/or password incorrectly. I can log in online without any problems. I have tried to log in both when I'm already logged in online and when I'm not.

Also, the Contact Us feature isn't working - it has no items in the drop down list so I can't submit anything to get help.