It is what it is. A lady can do what she likes when she likes. Some ladies are not in this solely for the $, so they may seek a genuine connection or feeling before seeing someone. Something has put her off and rather than go along with the appointment and have a terrible experience for either you or her, she declined. Respect that and move on. Posting and putting the situation on blast is not a positive move either.
In my business and in life, my motto is this: If you do something to piss me off, I'm not gonna sick your duck. Simple as that.

At any point when communicating prior to the appointment, if something doesn't sound right or fit with me, I'll decline. I'd rather be broke than compromise what I believe or what am comfortable with.
If the hobby gets too stressful for you, take a break. Shouldn't be taking anything too personally and getting wrapped up with feelings of rejection, it's just sex.