Norton Internet Security

On 2/8/10 I updated my NIS with NIS 2009. After I did this & paid for it, I re-read the order & saw that it was for only one PC. (my fault...should've paid more attention)

Yesterday 2/16/10 I decided I'd better buy an additional product key for my laptop, so I did.

A friend of mine pointed out today that NIS 2010 is available & with the capabilities of installation on 3 PCs. What a difference a few days make if I had only waited.

I want the newest version with the 3 PC download, but how do I go about canceling the other 2 orders from 2/8/10 & 2/16/10 & ordering the NIS 2010 so that I can download on my 3 PCs?

What do I do first?