Activation and product key

I bought an upgrade 3-users 2011 internet security from Fry's.  After I installed it on the first laptop, it asked for product key to activate.  I already throwed away the package box (there is nothing inside) and there is no product key on the CD sleeve.  I went to help and got a verture help telling me to open Norton, click "account" and follow the instruction which I did and got a product key.  I did the activation but now it says I have a 15 days trial period!  How do I get a whole year back?  When I installed the 2011, my 2010 had only 1 day left.

 

Please help.