answer: #Person1# confiscates the counterfeit notes and will issue #Person2# with a receipt. #Person2#'ll pay in some more cash to make the full deposit.
documents: #Person1#: Unfortunately, according to our regulations I have to confiscate these counterfeit notes.
  #Person2#: So, this 500 RMB is worthless?
  #Person1#: I'm sorry but it is our regulation, so I must follow it. We will issue you with a receipt to show that the notes you presented us with are counterfeit and have been confiscated. Then, if you wish to pay in some more cash, you are free to do so.
  #Person2#: Right, I see. Let me give you another 500 RIB.
  #Person1#: Here's your Passbook back and the receipt to say we confiscated the 500 RMB worth of counterfeit notes.
  #Person2#: Thanks. Now can I make the full deposit?
  #Person1#: Yes. Please fill in a new deposit slip and we can continue.