PayPal Customer Solutions Agent interview questions

Applied for multiple positions. was told to come in for an interview, so I did. they said that they would call me, never did. just sent me the computer generated email to let me know. so I keep applying and I am contacted via email and told to give this person a call regarding a position. I call him an email him multiple times, he never did get back to me. I had called a member of the requisition team and she said that I should have never gotten an interview and that it was an error. So I asked what I could improve on and she said to stay at my current job for a year. so I re-applied as soon as I could. got the assessment sent to me, did it, an went in for an interview. I was interviewed by the same lady. she said that she already knew all my stuff and that she was going to present me really well at the team meeting at four, by the way my interview was at 10 am. I was done with the interview by 1030 and when I got home 1115 I had received the same computer generated email saying I didn't get the position.. I call about it and was told that I would be called back that day. I called the hiring manager again and was told that the email was an error and that I wasn't selected. I then asked what I could improve on for future references. she said she couldn't tell me. I cannot believe that such a well respected company would treat a prospective employee that way.