Why do you think you need an escort service here? There are 2 or 3000 ladies all over Patong that will willingly "escort' you. Just walk around and smile at them and take your pick. There was a website a few months offering girls as escorts in patong, can't remember the name, but I'm sure it won't have done very well. Most girls on it were mainly BGs, some of which I recognised, with their usual fee hiked by 1 or 2000 baht.