Amazon Business Analyst interview questions

I didn’t receive any call from HR initially when my resume was selected,it was all on email asking to select the dates , even when I asked about interview there was no reply, in first round the interviewer was on his desk , I couldn’t hear him properly as I could hear people speak in the background and there was no network service , it felt a bit unprofessional as if they were not interested , second interview also felt like the interviewer was uninterested . No proper interest was taken in this interview , I was really disappointed as I had prepared for a month