Hi Oliver, getting turned down totally sucks. It might not be about references though, as kronkodile says, many people get through to the late stages many times and end up dissapointed. Its so frustrating, and so totally understandable to think that to be turned down many times there must be something awry. Having said that, however, you could try and maximise your chances next time and find out on what basis they rejected you. Thank them for considering you and ask what they thought of your application and where it fell down - loads of people do this when rejected for jobs, it shows you're proactive and there's no harm in asking...