USER NAME needs
to be 3 to 8
lowercase characters, it can be alpha numeric but the first character has
to be a letter and the name needs to contain at least 2 numbers. Username is used for Internet connection
and for e-mail services.
Usernames
have to be unique to that person in the system. If
you request an
username that is already being used, you
will be contacted for another choice.
http://www.cvc.net/info/Internet_Access_Terms.html