Please note that each car rental agent has its own policy on additional charges which will be clearly stated in the rental conditions at the time of booking at Autoprio.com. Generally, additional charges may be applied for: young drivers, senior drivers, winter tyres, out-of-hours pick-up, one-way rentals, out-of-hours drop-off and border crossing. Any additional charges will need to be paid directly at the rental desk in the local currency in Udon Thani.