I don't think so. Generally, an intermediary company just asks you to spend tens of dollars to get a part-time card or something, and then introduces you to some jobs (the kind that requires interviews or training), and then there is no guarantee that you can find a part-time job.
There is generally no fraud, but it is not cost-effective. It is best not to find an intermediary for part-time jobs.
Generally, those posted on paper, handwritten and with telephone bosses in schools are generally intermediaries.
Just pay attention next time.