I see there have been a couple threads about K-girls lately.  Well here's one more.

My question is "If I have a problem with a K-girl or her service, do I tell the booker or should I tell the girl?"

Although sometimes the lack of English is definitely a problem with some of the girls.

unless you know the girl fairly well.  Most bookers of K girls I have dealt with are understanding and responsive.  Don't know what they would do if you are dissatisfied for a legit reason since I have never had the experience, but I would go with them for concerns.  JMHO