Can not install updates for CorelDraw X6 because it thinks my corel email and serial number don't match.

Corel Draw X6 update 1 requires a log in to Corel account to install.  Then it says:

This serial number is associated with another email. Please sign in with the original email and password.

Then it says to contact support, and the support page has no resources I can contact other than this forum, which is the worst forum software I have ever seen. 

How do I install update X6.1 and X6.4? How do I figure this out when there is no longer any direct support for this stuff?

Warren