Acro US IT Recruiter interview questions

hr has given a formal letter for the interview, I went there and two rounds got cleared,later after the technical round the person told that the hr round will happen.Afterthat a person name rohit came out and told that hr will call next day.After 1 day i called the hr she told negative feedback.When i called her again he told that this feedback was not mine.Afterwards i keep mail her ,followed her but she is unanswered.The worst HR POLICY I HAVE SEEN IN MY CAREER EVER.THE WORST SELECTION PROCESS.THEY EVEN DONOT KEEP RECORD OF YOUR FEEDBACK.WORST SELECTION PROCESS.