Alcon Senior Big Data Engineer interview questions

This organisation is highly unprofessional in terms of interview process. My interview was scheduled at 1:30 pm IST. Out of a sudden i got a call at 11:40 am IST. That person started without introducing himself and without gave me chance to introduce myself. He just started bla bla bla, few sql questions. After the interview he said , now you gonna have client interview. Later I got a call from my recruitment consultant. I informed them, don't want to proceed with my application. I would love NOT to work with such unprofessional future colleagues. Alcon please hire professional people ONLY to interview professional people.