NextBee Media Tech Lead interview questions

After applying online through job portal, I got an email from company which was having a link to do online assessment test. Once that is cleared, I got an email saying my interview call is scheduled and 3 people will be taking my interview. On the time of interview call, no one joined call for 30 minutes and no contact number was provided to me. No reply from HR on email as well. After 30 mins 1 guy joined call after looking at my email who was not even supposed to take the interview. Totally unprofessional team.