Have 30 licences, Only 27 Used, Cannot install on another device

Hi,

I am not sure if this the right place to be posting this, but I cannot see anywhere to ask.

We have 3 subscriptions all Norton Small Business, 1 x 20 Licences and 2 x 5 Licence, and have Norton installed on 28 computers.  But I was unable to activate Norton on another computer.  So I removed a device, so we were only using 27 out of the 30 licences.  Then tried to activate again, and it still says I have no licences available.  

When i look at my subscriptions via my.norton.com, it says there are 0 licences available.  When there should be 3 available.

There seems to be an issue with our account as we are unable to use the licences that we have paid for.  Is someone able to look into this?