The TGBT principle states that if something seems too good to be true, it probably is.

Ads offering exceptional service (especially with an established baseline service like kgirls), etc should be researched or flagged immediately.  

Currently, there's a myriad of fake profiles on switter. They are using tags such as "cum dumpster" or "fuck toy", which, while may sound enticing to someone kinky like myself, is a good indication that it's a scam. Search via these tags and you'll see carbon copy profiles that share patterns with gorgeous women in there. Red flag immediately should go up.  

Second point is reverse image search. A lot of ads will show world class models and are completely fake.  

Google reverse image search is trash, I suggest using yandex images or tineye for reverse image search. If the pics are used anywhere else, they will show up.  

http://yandex.ru/images (click on the image thing to upload yours)  
http://tineye.com

I suggest to use reverse image search for any girl you're planning to see just to set your expectations accordingly. With experience, you will know to immediately figure out what is the image of a model who has nothing to do with the provider.