Subscription Status Problem

I recently purchased a HP Laptop. First I purchased Norton Internet Security 2011 Subscription Renewal (2 Year Subscription) for my computer. Upon realizing I also had a free 15 month subscription, I also put that into my computer, giving me over three years worth of protection. Once I re-started my laptop, I saw that the total amount of protection days was only 456 days, far under what I had expected. My email has a confirmation of the two year purchase. I tried to confirm my purchase with the serial number provided in the email. No such luck, they refused to confirm it. Now if I state "I do not recognize this order" I risk losing the money I already used to purchase the product. Any help would be appreciated. I've ran the "Live Updates" icon multiple times with no luck either.