This closely resembles my experience getting my business established with Québec. Eventually I sent an email to the helpdesk complaining about all of the issues

This closely resembles my experience getting my business established with Québec. Eventually I sent an email to the helpdesk complaining about all of the issues and in return they sent me an address to an office downtown. That office is the helpdesk and processing center. Since then I go to the office every time, chat with the people, ask questions, fill out my forms, and they process it immediately. It took over one year to finally gain access to all the components of the online system. I still can't read their PDFs because they require an Adobe plugin for PDF "security". At any rate, see if you have the ability to go in person. Helps with the language barrier and probably more effective.