Trouble transferring Corel Draw 2018 from one computer to another. Tech support is very slow to respond.

I am trying to transfer a seat of Corel Draw 2018 from one computer to another.  It was uninstalled from the older computer.  When trying to install into the new computer  I get an error message stating the serial number is already being used on another computer. 

I contacted Corel support on Tuesday via email, Wednesday via chat and today via phone with no results other than some follow up emails.  This should be very easy to resolve.  This is very frustrating.