Big problem creating an account in Live Domains

I had an account *** Email address is removed for privacy *** and i want change it to a Alias for *** Email address is removed for privacy ***, but it's imposible, when i delete de account and try add this same account in the *** Email address is removed for privacy *** ALIAS, i need confirm the e-mail (but why if the email don't exist)

To try to work around the problem, I activated the forward mail, but all emails that fall in spam folders are not forwarded to the account *** Email address is removed for privacy ***

I need a urgently solution

1 - create the alias *** Email address is removed for privacy *** to *** Email address is removed for privacy ***