Amazon Senior Financial Analyst interview questions

Applied online. I get a phone call from recruiter and asks me if I had a minute. It ended up being 20 minutes. They asked me to give them some time slots to talk to the hiring manager. They don't confirm with me, just with the hiring manager and the hiring manager calls me but I had no idea I was scheduled to talk to him. I then have another interview with another SFA but she doesn't really know anything about the position. I had another interview 2 weeks later and finally I have the panel "on site" interviews. A full day of just interviews. I thought I did well, but apparently the hiring manager didn't like me. Overall very confusing process and terrible communication.

Referral from HR > 1st phone call with hiring manager > 2nd phone call with Sr. manager > Loop with 4 team members and 1 bar raiser. There were two more shadow interviewers who on the process of learning Amazon recruiting process. After one week, HR called me and shared the result. Amazon did not share any feedback.