I was told to go to an interview, it was supposed ...

I was told to go to an interview, it was supposed to start at 12 but because of how unorganised they are I was sat waiting for a whole hour before my interview began. I was then told that they would respond within the next day or two, I got a call a week later telling me that they had 'filled all the positions' but apparently there was no feedback as to why I was unsuccessful.