Omexom interview questions

I took time off work to attend this interview. I had received an interview time via email and I had confirmed this. When I arrived no one was expecting me. There was no way to enter the building as there is no reception area, I found a nice worker who allowed me into the secured area and after 15 mins found someone who had my details (I think) they were not interested and I had the feeling they had already made a decision. They said several times that I was the last interviewee and they were tired as it was a Friday and it was the end of the day. It was the worst interview I have ever attended. Very unprofessional and just not interested. I had no feedback for two weeks until I contacted the HR team that had arranged the interview via email. Hey guys get it together - disgusting process!