Bait and Switch Incall : Turn around and walk away, simple as that
Bait and Switch Outcall : Tell her she is not the girl in the pictures and its clearly a case of bait and switch. Use the correct thecnical terms to show your a familiar in the hobby and not a beginner. Nothing should be given as you are the "victim" there. As bad as comparing human being to food can be, Sol is right in a way... If you want a better comparision, if i call for a photograph for a wedding and the person sent is actually a singer, obviously its not what i expected, so im in my right to turn down the services from the person
Legit Girl Incall : This is debatable. Some peoples say they would give money for compensation, others would not. Me? I would probably turn down a girl on attitude before look actually so in that case if im really feeling it won't be good, that im not gonna have a good time, and she herself seem like she would rather be elsewhere than with me, best would be to cancel the meeting right? In that case i don't think im entitled to give anything as it would be rewarding bad services... The only case where i would turn down a girl on look is if the pictures are VERY misleading despite being her, like 5 years old and 25 pounds less... something like that. In that case despite being her, i still feel its bait and switch so those rules apply. Otherwise... i think a session can be salvaged. Even if facially she is not as pretty as expected or what i had in mind, if she is very cool and the body is great, im gonna have a lot of fun anyway. Face is what is hidden most of the time, so its a risk we have to take, but at the same time agency usually have "standards" so its not like you gotta get send a very ugly girls. lol. We all have our "standards" and beauty is in the eye of a beholder as they say, but its pretty rare an "8" is a "3" for somebody else... and vice versa. Im usually not fond of numbers but this is to illustrate my analogy.
In the end if you turn down the girl, if your a good client of the agency and you really don't do it "often" or almost never, but it happen one time, they won't care im sure. If your a new client they may not priotize you for next time but i doubt they will ban you for a first time. Its just something to do "sparringly". Don't book escorts waiting to see the perfect "10" beauty in your eyes, cause it could take a while... Even girls with face pics, they may show with different make up or close to none as glamour pics ain't the same as "regular life look" and look very different than what you expected. You can't base your bookings on this.
Legit Girl Outcall : Pretty much take everything i said for incall, but there i would give at least a 20 for the driver. Some would call me cheap and say they would give 50 but look, im not in Laval or such, im downtown... 20$ of gaz is more than enough. Its what a driver get for a downtown booking anyway.
In the end remember the most important rule of all : An escort can always refuse a client, but a client can always refuse an escort as well. It goes both way.