How can i get a new license for Creo 3.0 student version? The old one expired.

How can i get a new license for Creo 3.0 student version? The old one expired.

I´m now a student at university and must prepare for the studiums of next semester.

The old license is deleted, but can not get the new one.

p.s. In the past i received the license per Email from PTC when it expired.