So, there's a brothel - a fairly classy one, all things considered, that caters to the rich and/or titled. Would the clientele be expected to pay for the services offered up front or afterwards? Who would greet them as they came in? Would the madam herself undertake to speak to each client, ascertaining his particular desires and/or kinks and taking his money or would he just go up to a bookeeper of sorts and pay him/her? Is there a difference depending on if the man is a long-time client or a first-timer? How do they decide upon the particular girl they would like to retire with or do they just get assigned?
Location is London, oh, around the turn of the nineteenth century...that is, 1799/1800.
Any and all help will be greatly appreciated.