Samsung Research America Data Science interview questions

I had applied online and after a week one of the recruiters contacted me back saying that the team was interested to interview with me. I choose a date in the Jan month but she said that one of the panel member was on leave on that day and scheduled a day later. On the day of the interview, it was postponed again saying that the team was busy and a later date was given. On the next date, again the interviewer told that one of the panel members was sick and a later date was given. Finally 2 days before the interview, I got an email saying that the position was already filled and they are Sorry !! Absolutely unethical behaviour from one of the leading and respected companies. Before the interview they had also made me sign a form disclosing my actual race and gender, which brings into question why my interview which was scheduled on 8th Jan was postponed to 8th Feb and then cancelled. Absolutely terrible and unfair practise by the Company.