Vera Wang interview questions

Interviewer called the role "assistant" despite it being advertised as a manager role. Not friendly or even professional, very poor representation of the brand and company. Interviewer would not shake my hand and mocked my resume and experience despite me having the qualifications. Its one thing to feel somebody is not fit for the job (which within moments I discovered I would not work well with this particular hiring manager) but it is a completely different thing to be rude and unprofessional to somebody for 15m