Hi bro and welcome to the forum
You have to call the phone number given on the profile page. She is located somewhere
in the Mongkok area as stated but you will only be given the address by her when you call
her and make an appointment.
If you have problems communicating with her, why don't you get into a taxi and get her to
tell the taxi driver where to take you to meet her?
Best of luck and happy punting!