There are many places where you can find nice girls for 2 hours, pretty young girls, for much cheaper than what has been mentioned so far.
Aya and Daisy Dream massage start 2500 and pretty girls. Phrom Phong area.
Also many others in this area, for high end Aries Massage Bangkok
https://maps.app.goo.gl/PVSZ6MFB4j2hK1b97
This one is more expensive but very pretty girls.