Cannot sign in to manage live.com domains

Hi,

I placed one of my domain names (call it "A") into live.com and redirected all email to my "A" address to another account that I use every day.  Apparently I was supposed to log into my live.com account with a particular frequency and, obviously, I didn't and now I can't access my account or my domain name "A".

Can someone please help?  Is there some way I can send details of the domain names and account usernames privately to demonstrate ownership?

Thanks in advance,
G