Is the part-time job of "typing, copying, proofreading (you can take it home) or email" credible?

I was cheated, and now I feel bleeding. First, they asked you to pay, and I paid 300. Then they make you owe a membership card and a contract. They will tell you that they have suitable jobs. Then, they tell you that work is to work every day, that is, to copy things. They found me the envelope copying type, which costs 20 cents per envelope. Then they will tell you that the money is not refundable. Is it dark enough? I was wondering why I didn't refute it at that time, clearly saying it was a part-time job, and why it later became a full-time job. The difference is too far. Oh, by the way, I asked them later, and they said that there was that kind of part-time job, but it cost 200 yuan. I was really scared and asked them if they had any other jobs. Other jobs are really bad, so I might as well go to the street and find one. The service attitude is also very poor. If they find several unsuitable jobs, they won't answer my calls. They also said that there are many people looking for them, so it is best not to look for them, just call them directly. This is my experience. Alas, such social swindlers are everywhere. Don't trust anyone, anything that looks cheap anyway. Because there are so many liars, basically everyone has been cheated.