Robert Half Project Manager interview questions

A social engineering company! After I submitted my CV, they invited me for an interview. I was told the job market is booming and there would be a lot of hiring right now. Because of this, I was asked to quickly provide my references. (Not) strangely, Robert-1/2-MR wanted to know the names, full contact data, previous job role and current job role. During the interview the representative proudly told me that she probably knows all of the employers. I was asked what was my previous salary. I was told explicitely to expect a much much lower salary. In the end of the interview, suddenly it seems the booming job market had come to an end and I was told there is no more suitable role for me right now but I would be immediately called as first one when there is an opportunity. What a joke - they will call ME first! Robert-1/2-MR clearly showed me they are not working for job-seekers, all they do is social engineering and collection of information about job market, companies, salaries, names, for their own benefit.