The comments on the Dangerous Curves controversy include reports that DC's proprio makes it up to jilted customers by giving them a free hour (or hours) with a girl (or girls) on his team. And a feature of the Montagne parties is the rafflles in which the lucky winner gets free time with an SP.
I assume that in either case the agency involved pays the girl whatever she would have made if the customer were parting with cash. But I don't really know if that's true. Does anybody else?