Amazon Contract Manager interview questions

Applied online twice, and both times was contacted by HR to begin "the process." The first time around I did a several page questionnaire, an HR phone interview, a phone interview with someone in Legal which was a behavioral based interview weaving in their leadership principles, and then I was asked to draft a sample contract. Between spending hours on the questionnaire, an entire day writing a perfect contract, spending a couple days mastering the leadership principles for a behavioral interview, and brushing up for the phone interview, I'd say I invested at least 25 hours of my time. Then, I never heard back. 9 months later, someone from HR called me to congratulate me, I made it on to the next round! I was like wow, I had interviewed about 9 months ago, and he said "sorry, that HR guy left and I'm on the project now, would you like to move on to the next round of interviews?" I said sure. Then, I never heard back!!! Just this January I was contacted by a guy in HR to being "the process" by answering a several page questionnaire. OHHH no, not this time Amazon!!! I'm not giving you another 25 hours of my life, when you cant spend 25 seconds sending me a rejection letter. Terrible manners.