Maybe Support can transfer all your purchases into the one account you choose, Jim. Try using the link in reply #1.
https://stardock.atlassian.net/servicedesk/customer/portal/4/group/14/create/10139
Also, there's this:
"Merging two accounts
If you have access to both email accounts, you can merge your registrations here:
https://www.stardock.com/accounts/registrations/
If you do not have access to both accounts, we will need information for both accounts such as one of the following:
Click here to submit them."
You can combine 2, and then the third after combining the first two, but you might wat to ask Jazlan about that.