WisdomTree Investments Associate Director interview questions

I scheduled a first round zoom interview for their Associate director role. No one showed up. I emailed their HR recruiter to say I was on the call. No response. I waited on the video call for 30 minutes then decided I've wasted enough of my time. Emailed to schedule a follow up meeting and got no response. Very unprofessional outfit. Will not want to work here in future.