Kantar Consultant/Director/Partner Level interview questions

Several phone interviews with HR and one with Partner. When I came in to the office to interview with one of the Partners he was very rude. He made very little eye contact with me, seemed totally disengaged and he wasn't listening at all. It was seriously the worst interview I've ever had. It was maybe 15 minutes long. There are so many negative reviews of this company all over Glassdoor so I wasn't expecting much. I hope potential clients review Glassdoor before they consider hiring this company too. I have never been treated with such disrespect.