I never set up an appointment unless I've seen full pics including face pics.
If I arrive and the pics misrepresent her or is a clear bait and switch, I will automatically turn around and leave. Immediately. No explanation required. No text. No nothing.
I had always been polite and tried to offer up a nice explanation about why I couldn't/wouldn't stay before when this kind of circumstance occurred before...but on more than one time, in situations which were clearly bait and switch, as soon as I start explaining that I was expecting something else, a guy jumped out of the other room and got into my face and started demanding a fee. Needless to say that didn't go over well.
Stopping to explain just to spare her feelings opens the door to getting jumped by a pimp. I'm not going to give them that opportunity. My apologies to the girls who don't do that awful kind of shit, but if you can't post your own pics, when I show up and its not you I'm leaving without apology. Period.