It's a job, indefinite, short-term, not a job, but you don't see the point, so you don't need training fees. That is to say, well-trained talents are really needed, and there is no charge. Now as long as you say the employer who pays the money first, it must be a trap. Many activities need to be interesting to catch up. You may have activities in more than one place a day, and you are tired to death. You said it was normal to catch up with four or five hundred a day. This kind of work is not available every day.