GLG Analyst interview questions

I got contacted by one of their regional recruiter after applying through the company website. the recruiter sounded very nice and asked me about GLG business model. she said that the office will contact me in one week. after 2 weeks I still had not been contacted and call her back, she promised that one of the manager will contact me,,,,, again, after waiting for more than 1 month I still had not been contacted. I called her again asking whether the position still open or not. finally she aggred to set up a video interview in 2 days and said will send the interview details via email,,, a week passed and I still got nothing in my inbox. the way they handdle the recruitment process is very unprofessional,