Agree with above about we chat, tried 2 times both also ladyboy,
Dont think is because they dont have $$ for internet, seen alot of shopworkers playing with their phones all the time, I tried to create a WeChat account with my Cambodian number, need a 2nd WeChat account to verify it. This is the real problem imo.
Went with a tuk tuk to find girls before ended up at a shady ass brothel, room was just a plywood partition, partition didn't even went up to ceiling, no shower, no lights, she just use tissue clean. She was tight thou!
My hotel also charges $25 to bring girl, best to ask in agoda first
Also stay near pub street or on soksan road is good, at night it's the only thing left, maybe Khmer pub street, but I didn't visit there, so no clue