Recently, I had an interview with Amazon. At first, things went smoothly and well. After two interviews, they decided not to move forward with the process. I'm the type of person who wants to consistently improve, so I wanted to get some feedback regarding why they decided not to continue the process.
I sent polite emails to the project manager and human resources to try to determine what I was missing. So far, I haven't received any responses back and it's rather frustrating not knowing why I wasn't qualified for the position.
What else should I do to follow up and ask for feedback?