ITS vendor email accounts don't respond timingly and usually they respond with template replies instead. Try making phone calls to your local Apple Developer Support (ADC). It's usually much easier to talk to "local" people. They might be able to refer you to someone.
Did you ask them to change your account from a company to a individual account? They allow you to change from an individual account to company. Perhaps the reverse is possible.
For the record, I waited 3 months for my paid/free apps contract to be done. That means I had 3 months where I couldn't put up anything on the app store. (and yes I know, I screwed up first, to let this have a chance of happening).
Did you ask them to change your account from a company to a individual account? They allow you to change from an individual account to company. Perhaps the reverse is possible.
For the record, I waited 3 months for my paid/free apps contract to be done. That means I had 3 months where I couldn't put up anything on the app store. (and yes I know, I screwed up first, to let this have a chance of happening).