Renault Group interview questions

I had to pass several interviews with many managers in Guyancourt, plut the toefl test in Plessis Robinsons. Apparently all the managers agreed to hide me sending me a mail writing that they validated my candidature, and I got the max from the toefl. Nevertheless, the last interview was with a consultant hr who had a bad feedback. From my side nothing special happened during such interview, usual questions like 'what you want to do in X years?'. It looks very weird to me that a good prospect validated by the top managers is not hired at the end for 20 minutes interview with a subaltern hr. I kindly asked for a motivation to the hr director, but the guy was of course never reachable, except when some months later he himself called me to propose the same job. Very unprofessional.

The interview options were skype or over the phone. The interviewer was very welcoming and helpful. She asked a variety of general questions about skills and experiences, followed by job-specific questions. The interview took around 30 minutes to complete.