I've never used the RB system because I've never figured out how to buy AW credits without something appearing on a card statement (please let me know if I'm missing something!). But I have, however, used the RB principle to contact girls directly. I'm not particularly enamoured with WG business models (less and less so these days, in fact) so rather than mutely accept industry pricing, my present approach is tell ladies what I am happy to pay in return for what I want.
What I do is put together a hit-list of, say, 10 girls I'm interested in seeing and I then message them a very polite proposal along the lines of "I saw your profile...I'd like to meet you...I'm looking for this amount of time...and these services....on this date...and I am willing to pay...."
This is non-negotiable. They can either accept my offer or not. If I got no replies, which has not happened yet, then fair enough.
In fact, I've had considerable success. As a rule what I look for a is a "date"...dinner followed by a punt but at a price that reflects a realistic fee for the hour spent actually punting and a sensible price for the hours spent dining and chatting. If the girl doesn't fancy a date then obviously she won't accept the offer but it seems that most do...particularly on Monday and Tuesday nights when, perhaps, business is otherwise slow (just a guess).
I took one girl recently (who I had wanted to see for a long time) out for a meal followed by an hour's "private time" which, in the end, amounted to an evening long date -- we met at 7pm and separated close to 11pm -- for 200 quid. Her usual rate is 120 an hour regardless of whether you are feeding her or fucking her. I was very clear in the proposal that I was a one pop, laid back guy and that good company over the meal was as important as raunchy sex and she was welcome to choose her favourite restaurant. I pointed out that essentially she'd be earning her usual 120 fee for her services, and then roughly 25 quid an hour plus a free, decent meal for providing nothing more than companionship the rest of the time.
If a girl is busy or comes from a major city then I can readily believe my approach would not work. But out in the relative shires, or just to a certain type of person, 200 quid for a decent night out ending with an hour's booking may not be a bad alternative to a slow night in waiting by the phone and perhaps no income at all. Whatever, as I said it's a tactic that has worked well for me and the responses I do get using it are from girls I actually want to see. If it's useful, I do have about 10 positive feedbacks on AW so I suppose I am not an unknown quantity. Most, oddly, make reference to my being good company as much as any sexual prowess.