Norton 2016 Product changes

Hi folks,

My apologies up front if this is the wrong place for this question.  I'm a newbie here so please be nice!

My question is straightforward.  I have a Norton 360 with Multi-Devices subscription.  It is currently installed on 3 devices.  I have 2 more slots available.  The subscription expires in Sep 2016.  This package has been replaced by Norton Security with Backup.

I have another subscription for NIS that expires in Dec 2016.  This has been replaced by Norton Security.

My question is what do I do to replace the obsolete software with the new products?

Thanks for your help.

Jimmy Eagles