I need help setting up a domain to use with outlook.com - am referring to this page:

https://domains.live.com/Signup/SignupDomain.aspx

I just need to know where can i get some direct help from tech support?

When starting the signup process when i enter my domain I keep getting the error message:

This domain name can't be used because it contains a protected word or inappropriate language. Please contact support if you feel this is not the case.

However the domain doesn't appear to have a protected word (not that i would have thought) and it doesn't contact inappropriate language?

I tried online support (chat) and they referred me back to here to ask for support

thanks in advance if you can help