Columbia University Information Security Analyst interview questions

Didn't even have the interview. The hiring manager string me along and did not care about wasting people's time. Send me an email asking for an interview on Monday. Then I follow up twice to ask for a Zoom link and no answer. Tuesday came and he email me again early morning if I want to do the interview on Wednesday. No apologies or explanation why he ghosted me last time. I said sure just to see what happen. He decided to send the link one hour before the interview. And I didn't even show up. Very unprofessional. Chose somewhere else. I expect better from a higher education.