Amazon Programming Manager interview questions

I prepared an phone interview with a hiring manager based on the job posting and description. The interview started 10 minutes late. At the beginning of the interview, the hiring manager explained two open positions. None of them fit the job posting. The interviewer didnt even review the resume prior to the interview. Of course I wasn't fit to what the interviewer looking for. I was so frustrated the miscommucation between the recruiter and hiring manager. I totally wasted three days to prep for the interview.