Madame Marissa and her friend had teamed up with this guy to do some business. But he tried to shortchange them because he thought they would not notice. But they did and they did not like his dishonesty. So they punished him cruelly by trampling and humiliating him. He was also turned into a money slave by the mistress to compensate them for their troubles. They then terminated the business engagement.
Madame Marissa was angered by the behavior of this client. He was not apologetic even when it was pointed to him that he had erred. She had to punish him for what he had done and she turned him into a money slave. The mistress wanted to leave a huge hole in his pocket because she knew he would feel it. That is why she used him as a human atm.