Trish --
Did you ever hear from your professor? Is this for the class you are doing on line? That is inexcusable if it is.

I do have one colleague who will never answer emails or return phone calls from students. He believes that is why he has office hours Of course, we all think he is a bit of a ***. I have tried to argue with him about it, but he is very pompous.
I will admit that I sent a sarcastic reply to a student who emailed me yesterday to ask me when the next test was and what chapters were covered on it. I told him if he came to class or read the syllabus he would know. Then I answered the question.