PLANETCAST Senior Full Stack Developer interview questions

Applied for MERN stack role Scheduled interview by third party vendors for 30 mins which never happening I joined the google meeting at scheduled time but later nobody showed up and I was informed to wait for 5 mins while It was already 20 mins Later HR called me to join the call immediately after 30 mins of schedule, I had other meetings due to which I said I cannot join now. I hoped for reschedule and that also never happenend.