I'm very new to the hobby, and maybe I just don't know what sites are real and what aren't but I see some girls that have the same shared phone numbers on their pictures, so I'm assuming those are agencies.  How do you know when talking to an agency that you are getting the girl in the ad?  Or when you know its an agency, do you ask to see a menu of who they have available, or what is the appropriate educate?  If you get to the door and if it's a bate and switch, do you bail, do you ask for a discount. do you deal with the girl at that point or txt the agency back saying this is a different girl?

Maybe I'm asking for too much, but I'm look for early to mid 20's petite asans, whites, or Hispanic that are at least a B cup or MM in the western suburbs, Naperville(ish) area, that isn't too expensive, or outcall is fine too.  Looking for really good bbbj skills.  I'm willing to drive to O'Hare too if I know I'm getting the girl in the ad, just not willing to drive downtown.  I see lots of ad's for $200, or even some for $160 and the girls look incredible.  Are those just all scams, or bate and switch, or LE?  Is their a price point when you know it's fake?  

A lot of you pro's talk about places in only acronyms that I just don't understand making it hard to find their website or phone number, so if any of you could post or dm me reputable sites or number that would be awesome.  
thanks

First, just as with most things when things seem too good to be true, that probably IS the case. Be careful there and leave to to the more experienced, or at lest those with deep pockets.

 
You'll pay your self some dividends by simply checking the reviews for your area then checking the ads related to those reviews. Definitely do the reverse as well -- any ads your considering check for reviews. Learn some of the simple search techniques such as doing searches on the phone number you find in the ad and reverse image searches of the pics. It is hardly unheard of to find professional model pics used in provider ads and generally a warning sign.

 
By looking at the reviews you will also pickup what sites are referenced by any acronyms you're seeing.

 
Last, since you are asking these questions and saying you're new, I'm guessing you have not found the Newbie board (FAQ for Newbies) yet. Go check it out it has some good basic information that will help you.