Xoriant Plsql Developer interview questions

I was interviewed at Gurgaon location. First round was telephonic and the next day, they called for F2F interview at their office . Three rounds were there ..2 technical and 1 HR. Dear team, Firstly, value our time too..we know you all are busy personalities but we do a job as well. They made me sit idle for more than an hour as no one has arrived in the morning to take the interview. Please if you are asking the candidates to be on time, then ask your panelist as well. Secondly, we come with a hope of getting a feedback no matter we are selected or not. Please bother enough to provide them the feedback/results even if they are not selected instead of ignoring the mails and calls or giving them false hope.