Lady Sarah was interested in dominating this guy financially and she did it. She used her charm on him and in no time, he had given her his credit card and she went to the atm and withdrew the money she wanted. She was not greedy so she did not take a lot as she knew there was tomorrow and she could get more. He did not seem to care as she had intoxicated him with her charm.
Lady Sarah had beef with this guy and she had to make sure that he learned his lesson. So his punishment was to make him her human atm so she turned him into a money slave and by the time she was done with him, she had gotten more money than she had expected to get. She let the guy go after she was done with him. She had no more use for him.