I have experienced this off and on during my time as a professional provider. However, it seems to be the proverbial Elephant in the room. No one really discusses it, mentions it, it seems like it "doesn't exist" out of site out of mind. And I am not saying that it's just the new providers there are many veterans who are guilty of this as well....
Those who throw a fit, pout, use guilt trips, or yes...even threaten a gent when asked to be a reference for them. Who one either don't respond to a reference inquiry from another provider or give a bad reference so that provider denies that appointment request. To be honest I find that to be rather sad and slightly disturbing behavior for a provider. It's my understanding that the gentleman choses who he wishes to visit, and that could be a dozen or so ladies before he finds a few that he likes that he becomes a regular for....or am I mistaken?
My visitors are not "mine" should they decide to go exploring the new providers in town that is their choice and right and I will gladly give them a good reference. Because I know that ultimately they will eventually come back to see me.
It's not about sharing or playing the game it's about supply and demand. It's ultimately a customer service based business and others sometimes offer something different...Just like every other business in the world.
So...my question is this, if you are looking for regulars why would you make yourself look bad by acting in such an unprofessional manner?