Mobile Phone Monitor

I recently bought a new Sony Vaio VGN-NW125J. When I bought the laptop, I was under the impression that I was supposed to receive a free 12 months of Norton Anti-virus. When I try to open the application, a message pops up telling me that I have an invalid product key and also gives me an option to type in a different product key. The troubleshooting tells me that I was supposed to have been provided a product key in the package. I could not find a product key for the application. Maybe it was false advertising, but could somebody verify this for me?