ACCESS dinied to my solidworks

I cannot acces my solidworks since about 1 week. I purchased the 1 year student licence and it worked fine for a while. When i log in it says that I need to contact my "system administrator" to request more access.... I am the only one on that account, I can not call anyone. I live in France and when I call the help center in France they say they cannot help me since I purchased directly on solidworks website. What can I do or who can I call?