just wanna share with you what happened to one of my friends. Hopefully this will be a lesson for everybody. On interview day he had an exam at the university and couldn't postpone it so he decided to take the exam from 9 to 11 and go to his test/interview at 12:00( I'm not sure about the time but it was something like this. Unfortunately he got to the test location 10 mn late. The door was closed and they just took the invitation from him ..maybe he was told they would send him another one... The Irony is that his process was very smooth and it took him just 7 or 8 months from day 1, no RQ or anything.