How to Install Reseller Licence Key for 10 Devices

I currently have a 10 device license for Norton 360 which is expiring soon.
Norton are offering to renew for £39.99 for 1 year, however I can get a 10 device license from a 3rd party for £19.99, which I intend to do.
How do I add the new license information to my current subscription?
Many thanks,
Gary

you just need to buy the cheap licens but you can only and only enable it by calling norton to add it to the system els it dont will work and there is also other thing you dont can like have you licens newer then 3year in time if you now what i mean

Hello. Simply follow the steps in this article. If you need assistance we are here to help.

Edited: Do not add the new key until your current subscription is a couple of days from expiring. Generally. Days won’t be carried over to the new subscription.

SA