Try using a magnifying glass to read the miserable to read characters. I am often bitten by the font that they use and the similarity of many characters.
Unfortunately, support via telephone requires and active subscription, which you don't have yet until you activate. :-( I wish that they put the number in the retail box, but....
You can still reach support via email if you wish:
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
Note that you have 15 days of trial use before you need to activate, and even then you are still protected for a grace period of appx. 30 more days, but manual processes in OneCare will be unavailable.
-steve