My last trip i used only Tinder for girls to come to my room, average price short time 1 hour or so around 1500-2000 thai baht if they stay long time over night its probably better value. Your tinder will automatlcally start working on arrival. They just leave their ID with reception and knock on your door and when they leave reception rings your room phone to confirm your ok then they get their ID back and leave, its the best option other than Go Go bars or beach road