Google Product Forums
Re: Why did I receive a "complete registration and upgrade your account" email?
MSIR60 (The Original) Dec 6, 2011 7:37 PM
Posted in group: YouTube
http://www.google.com/support/forum/p/youtube/thread?tid=482e6c110cab2b42&hl=en

the user Maxwell Landbeck posted the full e-mail and you responded to it.