NIS 2011 Renew but lost 2 weeks Subscription ?

If you have another Product Key or Subscription Renewal Code

Lets you start a new subscription or extend your current subscription.

In the case of another Product Key, your product uses the new Product Key for subscription. You get specified period of protection with the new Product Key. In the case of a Subscription Renewal Code, your subscription on the existing Product Key extends by specified number of days. For example, you have 10 days remaining with your current subscription and you renew your subscription by using a Subscription Renewal Code for 366 days. In this case, you have 376 days of protection.

 

 

I still had 2 Weeks left before my old subscription ended , and thought the 2 weeks I had left would come on top of the 366 days , but when I entered the renewal code , my subscription status shows 366 Days ?.

 

What have I done wrong ?