I wouldn't email any of the escorts about a Reverse Booking, as it being said, you might get blocked
I find the best way to get the most out of your reverse booking, plan ahead, and tell them you want to meet in 4-6 weeks time, that gives plenty of time for the escort to see your bid, where as: I want to meet you at the end of the week, your only giving the escort 4 days notice, and see may well be busy