Such an unprofessional agent

I am interested in a property in Alhambra. I called the phone number and Sandy Dunham answered the phone. She told me that she was driving and she would call me back in 20 minutes and she never did. I called again after couple of hours, she said that she was in meeting and would called me after the meeting and she never did. I called her after three hours, and told her that she did not call me back and I had to call her and wanted to make an appointment to see the property she simply hung up on me. Sandy Dunham can you please explain why?