I've explained it all. They said it was too easy to get money. And they will have to pay for PREPAYMENT again, so they are afraid that we will cheat them out of their money.
I have already explained that they said it's too easy to make money and they have to pay the advance payment again, so they are worried that we will deceive them of their money.
As I explained, they said it was too easy to make money, and they had to pay for the advance payment again, so they were afraid that we would cheat them.