How to add named host

How do I add a named host? (I am currently using 5 of 5 hosts.  When I select "Service Plan" to change it (to add another meeting host), I am taking to a website rather than being allowed to add to my current licensing subscription. 

This is the site I am taken to:

https://helpx.adobe.com/adobe-connect/kb/adobe-connect-new-billing-system.html