The trip deposit if part of your trip payment. So if you pay the deposit of $40. And then show up and pay the difference, you are paid in full and ready to go. If you need to cancel a tour, simply do this before 48 hours from the departure of the tour and you will get 100% of your deposit refunded. If you fail to cancel before 48 hours then we keep the deposit but refund any other money more than the deposit that you have already paid.