I had a terrible experience with an assinine prof in my MA. I had questions regarding an assignment (that was due after the course classes had finished), I tried to contact him to arrange a meeting- no reply. I submitted the paper- a month later I get my Mark via website- B+ (the only B I got) and I had questions. What was my mark on the paper and presentation. No reply. No contact nothing. I emailed, went to his office, called. nada.
So I took it up with the program admin- who told me this prof has a bad rep for this sort of thing. It took a couple of weeks but the program director agreed to let me re-submit the assignment and have another prof mark it- however, this was not really helpful, considering my course grade is made of more than one assignment. Also, after I agreed to this I had a hell of a time communicating with the PD about the logistics of this.
In the end, I dropped it. Which I regret now. That B+ is just so glaring! Although it didn't stop me from getting scholarships, admission to PhD programs. Had it been the difference between an -A and A maybe I would not have been so upset.
Either way, I feel that you paid, you put your energy and dedication into the work and you deserve an explanation of how you were graded and why. and the admin should be aware of faculty that are not living up to their prof duties. JUST BE SURE THAT YOUR REASONS ARE WARRANTED.. .. or else you very well may get a bad rep.
I would advise speaking with the prof about your concerns, including the fact that you are thinking about bringing it up with admin before you actually do it. If you can get a hold of them that is.