Buying Unity through Studica

I know that you can request a new serial key from Unity support if you have to reformat or reinstall Unity. But when buying through Studica it states “Good for one activation on one computer”. Does this mean you can only activate it once? or it just limits you to one activation at a time vs the two activation’s Unity normally comes with.
Full Product Page: http://www.studica.com/us/en/unity/unity-pro-4-student-commercial.html

Just wanted to be 100% sure before I purchase it :wink: Thanks

It means you can activate Unity on one machine at a time. If you return the activation on one computer you can activate Unity on another computer.