Amazon Area Manager interview questions

I applied online and was contact via a Military Recruiter for the Area Manager position. A human resources representative emailed me and scheduled a phone interview for later during the week. I called into the conference call and waited, for the entire 30 minutes of length the HR rep said my interview should last. No one on Amazon's side joined and therefore I hung up and emailed the HR rep. She apologized and rescheduled the interview, and after a few hours I completed the phone interview. It was simple, in the STAR format and asked for specific situation and result based questions. The Operations Manager I spoke with was humorous, asked me about myself, my experience and then we went into the interview. This was simple, I was myself and thought it went very well. They ask a general algebra question which initially I answered incorrectly and while explaining my answer realized I had computer it wrong, brought it up and worked through it again with no issues. They want to hear your process of how you get to the answer. I was never contacted back personally by the rep. I had to email to make any contact or get updates on the status of my interview process. I found this odd, but then again was always told I was the manger of my own career, so I continued to pursue and often felt like I was constantly bugging the HR rep for information. However, I was still interested in the position. After emailing her, she responded that I was invited back for an event interview. After two weeks I emailed her asking the status of the second interview, which would be event style, and she stated that there were currently no open positions and that I would, if I was willing, be put into a que with many others waiting for a position to come available. I stayed in touch with her an emailed every two weeks. The last I heard is they were working on scheduling an event interview at a facility by the end of the month (this was on the 7th) and it's a month later and still nothing. Needless to say, I've given up on the position and looked elsewhere. I am disappointed because I admired Amazon, their slogan, work ethic, and people I've met who work there. However, after this experience I can honestly say they're letting good talent slip through the cracks by a lack of attention to detail in their HR department.