I hope I'm acting within the rules of forum-life, when I offer this link to the Mocrosoft office forum:
http://answers.microsoft.com/en-us/office/forum/office_2013_release-office_install/office-professional-plus-2013-activation-and/725b9a0a-f8df-41c3-be28-cfe7492e638e.
The thread was opened Nov 16 2012 by a third Party with a problem activating Visio 2013 Professional Pro that exactly matched my own (this month) for Visio 2013 Professional.
As KelvinRiver, I joined that thread and asked if his problem was resolved. You can see His [disappointing] response to my question on page 2 of the thread (January 16 2013).
hoping for great things from 2013..
RSut