Solidworks license problem

Hi, im having a problem with my solidwork license. I have been using 3d Experience solidworks for a year and I just renovated it, but when I try to open solidworks an error mesage apears telling me that my license has expired. I have tried to un-install it and re-install it, but 3d experience tells me that my administrators (I don´t know who they are) have blocked the unistall of apps. I have also tried to send a email or similar to the user support, but the official page tells me that i don't have access for some reason and this is the closest thing that I can consider as support. I would really appreciate it if someone could help me out. 

Edu ​​​​​​​SOLIDWORKS Cloud Student Offers ​​​​​​​