SS&C Advent interview questions

I recently had a one-on-one interview with apparently the hiring manager of Advent Software. The guy who sets up the interviews, Bill, is very friendly and helpful. Once you check in, you will be given a name tag. Part of the interview included a written assessment, very simple, they asked me to write a response to a customer complaint--it took 15minutes. Then they had me speak to one of their current Client Support Rep's, who was also very friendly, and taught me a lot about the inner operations of Advent Client Support. The interview, however, did not go so well. I just felt I was not articulating my skills and experience well enough to suit the needs of the Client Support role. Furthermore, the female interviewer seemed to be very low-energy. I could tell she did not really seem to like me when I first met her. I had brought my own copies of my resume and my professional references, and she immediately told me she didn't need them b/c as a company, they want to "save paper". I felt that there were several times she asked me the same question over and over again, and I did not understand why she did that since I felt I had properly answered it. I think she may have been looking for more depth, but it was very frustrating for me. She asked me a brainteaser question which I answerer poorly. She also asked me an IT question, and I felt she didn't like my answer. At the end of the interview, which was after an hour, she told me she did not get the job. She also said at Advent, they like to be honest with their candidates.