I want to find a part-time job in an intermediary. What is the process of general intermediary introduction?

Generally, the intermediary will charge you a certain fee, that is, sincerity money, and then help you contact some part-time jobs registered in their company for interviews until you find a job that suits you, and then charge you a certain fee. Generally, they will only give you their own receipts, and you can ask them to issue a formal invoice. Also, you can send some personal information on the website and find a part-time job through the internet, not necessarily through an intermediary company.