Amazon Sr. Project Manager interview questions

First Round: Online Assessment Second/Final Round: Four 45 min virtual interviews. The interview process was fine up until the final round. 15 min before the virtual interviews began they informed me that the last interview would have to be rescheduled. They rescheduled the last interview 2 weeks later and the interviewer did not show up. After 20 minutes the HR rep asked to rescheduled again 2 weeks later. The last interview went as scheduled and I was informed that I would find out the results in 5 business days as Amazon has an SLA. I did not receive a notification for 12 business days. Overall a horrible interview experience and extremely unprofessional.