We have been asked to pay 30% deposit at time of booking and the balance on Day 4 of a 14 day tour. What is the usual practice in VN for deposits to travel agents booked over the internet? Should we retain something eg. 10 or 20% until the end of the trip in case there are problems? I don't won't to be unfair and understand they have to pay operators, drivers, etc but after reading some of the tales on this forum I feel I need to be a bit cautious. Thank you.