Did the director and your professor discuss your situation with you or only among themselves? It sounds like they didn't include you in their meeting. You should be given an opportunity to defend yourself and explain why you deserve to stay in the program. I would gather all assignments you did for this class, along with any other documents that demonstrate that you have done a certain amount of work for the class and try to argue that you weren't graded fairly. If I was you I would contact the program director and ask for an appointment. If he says no I would get in touch with the University's director and complain about how this has been handled. I would also talk to a student counselor/advisor and see what other procedures are available at your University. Each school has its own administrative procedures and the ppl working there might be able to give you more helpful suggestions. Good luck!