Amazon Programming Manager interview questions

I recently interviewed with Amazon as a Program Manager for their Chicago office. The entire process had gone very smoothly. The recruiter and coordinator were very responsive and communicative throughout the entire interview cycle. After the first and second round interviews I had heard from my recruiter immediately with continual follow ups on our next steps, and made it to the final in office interview round. My conversations with each contact were very insightful and I had thought they went great. After a few days I received a rejection email from a recruiter that I had never spoken to or interacted with. The email was very generic and I had requested feedback as I continue my job search. The recruiters response was that they could not provide any interview and feedback details. With Amazon being the company that it is I would think that they would provide their candidates some sort of feedback so that he or she can improve their interview processes. It would be beneficial to know if I was not offered a position due to lack of experience, cultural fit, etc.