I can tell you responsibly: never trust them and stay away from them. This is their usual trick: advertising in the newspaper every day, the salary is high, so many newcomers will go to the interview, and they all pass the interview. At this point, I will train you first and earn your training fee first. After the training, you will generally fail the exam. Can professionals fail to pass the exam for several years and three months? What business can't be done? Use your own money to buy insurance for yourself and your family. Only when you have bought enough tasks can you have the so-called salary. I tell you as a policeman: don't believe it. But we can't control them. This is outright fraud.