@Muthoni1
Hi Muthoni, it is probable that Airbnb have changed the intermediary they use to transfer funds to a users account in your part of the world.
Most international wire transfers are now done via the SWIFT network, and this network offers the payer three different expense regulation methods, which are called OUR, SHA and BEN (SWIFT standard field 71A "Details of Charges"):
* OUR (“Remitter pays all fees” or "Sender bears all transaction fees")
* SHA (shared costs) means that charges are split between sender and beneficiary.
* BEN (beneficiary pays costs) means that the sender does not pay any charges.
Airbnb are telling you the truth, they release $600 to your account but, the intermediary, be it 'Worldpay' or some other wire service is charging you the $4 handling fee.
It hasn't happened to me as yet, but it could at some point in the future, and when it does Muthoni, I will simply lift my nightly hosting amount by the amount of the charge and will be no worse off.
It would just be nice if we got a bit of notice and explanation when these little extras creep in......wouldn't it!
Cheers.......Rob