I need my cd key for multi-player I requested one about a month ago from support and never heard jack shit
That may be the case, but it doesn't mean that we didn't get back to you.
As far as I can tell, the e-mail was undelivered because no mailbox exists under the e-mail address you set up on your account. Now that i look at it, it looks like you made a typo, but I might be wrong.
Please double-check your account's settings and send me a PM.