Amazon Non Software Development Engineer interview questions

Applied online and received interview notice by email. However, the HR is horrible, asked me if interested in an intern. I said "YES". but he still put me on the list for a full-time. I made a mistake on the interview(nevous), and then heard nothing form him. No offer and rejection notice, no futher interview notice. The interview process is also horrible, the interviewer either forgot the time to call or could not got through by phone. Both my friend and me wait a whole afternoon but only received a reschedule notice.