Green Rubber - Kennedy interview questions

The interview was arranged by phone. I arrived 10 minutes early, but I was not interviewed until 20 minutes after our arranged time because the front desk did not tell the interviewer I had arrived. The interview was very standard and the team was friendly. I was assured they would get back to me within a week. It is now almost a month later and they still have not contacted me, despite my repeated attempts to speak with my contact in HR.