Found a couple of places round near the big Library.
At the first place we got to,there was four or five girls hanging around a very basic Thai bar and when we got there most of them ran off apart from a couple of boilers.
A bit further down the street there was a proper knocking shop with maybe around eight disinterested girls and the going rate was 800bht for 30 minutes and devo NO blowjobs.
Nothing in this area worth sticking your dick in IMHO.
Another place worth mentioning is called "Beer Corner next to the Big C going out of town heading East on the AH12 road.
Lots of Uni girls pouring your beer for you some may sit with you but you need to know a little Thai but I think you will have to get too know them a bit before there's any chance of reaching first base!
Top notch lookers to say the least.
Will continue my research but up until now,as far as Sanouk goes.Phitsanoluk may well be Thailands most boring town.