macOS Sierra + Norton Family NOT ABLE TO DOWNLOAD.

I brought Norton for the family app services it provides for my children devices etc along with the MacBook Air I intended on using it with as my main priority when purchasing. 
This was part of a package deal that 2 different well known stores had on offer along with the MacBook Air. 

Once home I tried to set things up: 
I signed up to the website and logged into my account. 
I downloaded the Norton Security.
I added my child to the family area along with me as a parent account and tried to add a devices... 
This is my issue. " I can not add a device ! "
All links lead to a blank page or send me around in circles. downloading the security program over and over again.

I contacted Norton help chat and they only sent me links to steps that I had already told them I took ! NO HELP.
Why is this product on offer as being compatible with Apple MacBook Air when it clearly is NOT ! 
PLEASE help me with this issue. ???
I am very unhappy I brought 3 years of protection for a service I can not use.