Licence Management

I am having difficulty in installing my new antivirus as my subscription tells me I am out of licenses and I haven't downloaded any yet.  I cannot seem to edit my devices from previous subscriptions on this new subscription. 

I've uninstalled on my main computer and now I can't reinstall as apparently my licenses are all used which are NOT!

I need my antivirus as soon as possible but can't seem to get through Norton Support.