In order to use the plug-in at the student rate, I rely on confirming a E series educational license of VectorWorks. I simply don't have the resources to personally confirm student status. 

Educators with a standard VectorWorks license must purchase my standard license as well. I do, however, renew educators demo requests on request so that you may explore the plug-in and demonstrate it to your students. 

If you have a cad lab of five or more seats, I typically offer each license at the student rate.