Shift CRM interview questions

Telephonic Interview with the HR was great. We spoke about 20 minutes talking about my experience and aspirations. She explained me what the company is all about etc. F2F 1st round - Casual Interview with basic questions and the lady was very pleasant to talk to. She explained me everything about the job role and what the company expects. Told me to come for a and final round with a presentation that HR would communite further. So I prepared a presentation and I worked hard for the whole week. Here is when the fun starts : On the final Interview day The interviewer was busy in a meeting so i had to wait for a 15-20 minutes. Anyways, Finally a guy came in (who wasn't supposed to conduct my interview) and took me to the board room and asked me if anyone has already set me up with the demo. I was thinking that he would set up a screen or something and I will start with the presentation. Instead, he started asking me random questions which I had already answered in the previous round. I didn't have any problems and I answered comfortably to whatever "Vague" questions he asked. These random talks went on for 20 minutes and then finally I asked him. "What about the presentation?" He replied- "You know what... dont worry about it." I felt really awkward of how my interview ended. I Shook hands and left. Now... my suggestions to the "professional" people working there. 1) Please value a candidate's time and dont schedule interviews when the interviewer is busy. Manage your calendars well. 2) It is very unprofessional behavior when you ask an interviewee to prepare a presentation and dont even give him an opportunity to present it. 3) It's totally unfair how some other candidate was selected without giving everyone else an equal opportunity. I really had high hopes from shift CRM but I am really dissatisfied and disappointed with the unprofessional behavior. Thank you.

The process was easy but at the time of face to face interview, one of the interviewer was not in the mood of listening to me or ask questions. She was playing with her hair.