Igenious, these scam people

The scan runs something like this:

• We get a booking from an 'intermediary' on behalf of their client.
• The 'intermediary' pays with the client's credit card information.
• The funds clear on our account for a three week stay in one of our apartments.
• At the last minute, the 'intermediary' contacts us saying his client has cancelled.
• We are requested to refund the payment not back to the credit card but to another bank account.
• The client never shows.