Enterprise Mobility interview questions

I received an email stating that I had passed the initial screening and they would like to set up an interview. I responded quickly and we agreed on a date and time. When the day came I was awake with my resume and company goals in front of me. The time for the interview came and went. I double checked the email and the phone number I gave. I sent an email asking if there had been a mistake. Later I called and left a voicemail. This was on a Thursday so on Monday after hearing nothing in response I sent another email asking to reschedule the interview. Still nothing. It has been two weeks and I have been left high and dry on an interview I was eager and prepared for. The fact that I received no response is what angers me the most.