Well! Let's look at it this way. Keeping in mind the distinction between what’s legal versus what’s moral, I 100% agree that morally it is absolutely disgusting to take advantage of someone like that. But there is still a difference between 'immoral' and 'illegal'. I've looked in the Criminal Code of Canada to see if withholding payment for escort services does actually constitute rape, and because it is not 'explicitly stated in law' that this is the case, it remains a matter that's very open to debate and interpretation. Some judges might facilitate the escort winning if she tried to press charges, but some may not. Someone I know who is an escort claimed that the new laws today actually specify illegality of the matter in question, but I see no evidence. In any case, the best way to avoid this is to accept payment only in the form of cash and immediately up front, otherwise if they're going to take a gamble that's not wise (even if it doesn't justify the client’s behaviour ‘morally’), it's still a stupid decision to be that trusting of someone you don't know. But honestly, rape to me is defined as physically forcing someone to have sex resulting in emotional trauma and physical injury, and that is not what's happening. The client did not physically impose anything against the escort’s will and she still had a choice to tell him yes or no but permitted it (even if she gave it to him with a different understanding of what would happen), it's not a guaranteed win in my opinion. Plus, if payment is withheld from a service that's not legal in itself, then a negative of a negative possibly cancels out, like math. There's no answer at the end of the day, but since society leans towards protecting women in certain ways, this to me seems like a subjective argument that a woman can easily try to manipulate, as a way to take advantage of ‘being a woman’.