Please help me with the interview of Mercedes-Benz.

1, the interviewer informed the group interview first, and told them to wait for the phone number after the interview of the group personnel department. 2. I finally got the call, but I told the manager to interview. I also went to the construction site and chatted with another person on the construction site. There was an exam before the interview. After the exam interview, I said I would go home and wait for the call. 3. I finally called for the third time, but what I need is to let me write a work plan and reply that I have finished it. The waiting process is long. Two weeks later, there was a phone call saying that I was informed by the company's personnel department that I had passed the formal employment interview, but I still had to wait for the phone call to say that the specific employment time and salary had not been decided.