Oxford House College Training interview questions

The interviewer was extremely rude, he didn't read my CV before the interview and was very unpleasant in the way he asked me questions. He made fun of my family issues and we were constantly interrupted by his coworkers. He told me he will let me know for the second interview but after two weeks I contacted him via email and he told me the position had already been filled. I don't mind that, I just wanted the interviewer to be polite, I don't think it's too much to ask.