Prior to your trip to Bhutan you will be asked to wire the full payment for your holiday to the Tourism Council of Bhutan.

This money will remain with the Tourism Council of Bhutan until your trip is complete. Only after you have completed your holiday will the monies be transferred to the local tour operator with which you booked your travel through. This helps to ensure the high quality of service received throughout your trip.

– See more at: http://www.tourism.gov.bt/plan/wire-transfer#sthash.jLW3p76Y.dpuf