Let's see - you meet a witty, beautiful, smoking sexy woman and want to spend more time with her - understandable. But your budget is not enough to cover that added time - hardly unique. I feel pretty comfortable in saying that almost every hobbyist here is constrained by his budget. And now you have posted that.
What reply do you expect? Some guys spend time with some ladies OTC - yes, it happens. Some guys like to talk about it, but almost never mention a lady's name because it could create problems when other guys want to know why they do not get OTC time, too. So talking about it is the best way to end it. Ladies spend time with guys OTC for one of two reasons - either the guy is a very good client and it makes sense as a marketing expense, or the lady just likes hanging out with the guy. From the guy's point of view, it is always the latter, but my personal opinion is that it is almost always the former, perhaps combined with the latter. After all, this is a job and a lady needs to make a living. If you are selling your time to pay the bills, giving it away to guys who can't afford to pay for it is hardly a formula for success. In your business, do you pick bad prospects and give away your time or products to them, just because you like them?
So, walrus, you can either try to develop a relationship with a lady that develops beyond p4p, which is fraught with its own perils but you are a big boy and can make your own choices, become such a good customer that you get special treats, or accept that you are a customer, she is a vendor, and you will get what you pay for. GFE does not mean she really loves spending time with you, even if it seems that way.
What you should not expect is a positive reply of any sort to this post. Discussions of OTC time on the board tend to follow certain patterns - there are the guys who brag about it, the guys who think they deserve it and get slammed for saying so, and the complaints about guys who always try to take extra time beyond what they pay for. That is it. Your approach is a little different as I think you are asking whether it is available, maybe how to get it. And I have answered you.
Having said all that, some providers offer lower hourly rates for dinner or drinks with no play time. Is that an option? It would not be for me, but maybe that suits you. It is pay for play, after all, and I am happy to pay so long as I get to play.
zig