You have been caught speeding. It's just a bad translation. Easiest way to pay is to go to City Center mall very bottom floor (below Carrefour) to the MOI kiosk. Take your license with you and your car registration. Simply hand it to the nice guy and he will tell you how much you owe (depends on how much over the speed limit you were going) and then hand him your credit card and pay. DONE. They usually open around 9am and it's best to go in the morning.