MAICPP enrollment: Create work account redirects to signup.live.com and support form fails

Submitting a support ticket is the only way to move forward. Please keep trying, clear your cache, clear cookies, try incognito windows, different browsers. Hopefully one of those will work for you as this is not a support portal, there is no manual review or call center. I have no access to the support team or their systems. I can only guide you to the right resource which is the support ticket portal. I'm sorry for your poor experience here, but you are on the right track! Good luck.