This is a rarer scam but unusually it is quite clever.......

You sell services such as holidays and are contacted by a 'supposed customer' who wants to make a booking.  The 'customer' books and asks if they can send over extra money so that you can pay for some additional service on their behalf (such as airport car rental). 

You receive their payment which clears into your account so you pay the third party.  A few days later you are informed by your account provider that the money you received was fraudently obtained and has been returned to the true owner - you are now out of pocket by the sum of money paid to the third party, who is actually part of the scam.

• Never agree to pay for third party services.
• If you are overpaid for something, cancel the payment and arrange for the correct amount to be resubmitted - never accept the payment and pass on the difference to a third party or seperate account.