can't access discussions

This isn't my usual Apple Support account. When I try to log in using my usual account I get an error screen:

I've tried this using different browsers, on at least 4 different computers, at 2 different locations, and I always get this result. I don't think it's a cookies issue -- I've never accessed apple.com using some of these web browsers.

I created this Apple ID, so I could write a new post about a problem I'm having with iTunes. When I tried to submit the post it said "You are not allowed to create or update this content".