<prompt> Human: Long story short. I booked my flight from a third-party travel booking website. However, I changed the ticket within 24 hours but was charged a specific fee from the airline to the third-party and to me.I discussed this with both the third-party booking company and the airline regarding the fee. I didnt hear back from the airline so I assumed that they were either in discussion with the booking site or ignored my request. The booking company decided to refund me the money and I was really happy about it.However, today, I received a second refund from the airline. Obviously, I dont deserve both amounts. What should I do to return the amount? How should I approach this situation? ideally return the refund back the the third-party since my fee eventually went to the airlineThanks.  <response>: The airline will likely try to charge the 3rd party vendor for the refunded fee. Try to call customer service for 3rd party vendor. Chances are they will have no idea how to withdraw the refund, but at least you tried. If they dont take the money, do something kind with it like donate it to a food bank. 