DeVry University interview questions

I received an email indicating that they were interested in my application that I sent months before. Asked for official MBA transcripts and set up a telephone interview. Individual from HR never called me and I emailed her 15 minutes after the interview was to take place thinking that I had gotten the information wrong and perhaps I was to call her, and she stated that the phone just rang with no answer. I was literally holding the phone in my hand waiting for the call, and I did follow up via email 15 mins from the time of the scheduled phone call. I was then told that she may have some time later in the day, and asked for a better number, I gave her a second number and never heard back. I emailed her several times to reschedule, but received no response to any of my emails. The level of professionalism is SEVERELY lacking here. I gave valid phone numbers, but if they dialed the wrong number, I am the one who was punished as not being available? I lost PTO time that day from my full time job to make sure that I had no interruptions for the telephone interview. I will never teach for this school, and I have years of teaching experience on site and on line. I am sad that someone who works in a Human Resources department failed to display the purpose of an HR department.