3Pillar Global Module Lead interview questions

I had a telephonic interview, the interviewer was so immature. He was asking so basic questions that for the whole time I felt like I am giving a python tutorial to a beginner. Every time i explained him something he kept on saying ok, and if I say should do I need to explain more then he was like it is up to you. I mean who interviews like this? I guess the interviewer was a junior developer but i didn't get called for the F2F interview, i don't know on what basis they made their decision. When i asked HR about the progress/status, i didn't get a single reply from them. At least they should have the courtesy of saying NO to a candidate. All in all, it was a very bad experience, i still don't know their judging criteria.

1 Online test and 5 Interviews and waiting time of 30 minutes and Interviews of about 1 hour each.