Thanks for your responses, ladies, they are much appreciated.
With regards to the photos themselves, they are as tame as you could possibly get - I am talking black negligee, which fully covers me, little black dress, basque and stockings, etc.... I am not showing any flesh that could be in any way be classified as 'naughty bits'.
Another thing I find laughable is their note advising us sternly not to show any 'naughty bits' when posting photos, and yet when I look at their escort section, I can see plenty of girls on there who are posing not just topless, but completely naked! It beggars belief, it really does.
I haven't personally corresponded with Finny so far, but I hope that either she or one of the staff makes an effort to rectify this, as it has really upset me, considering my financial status at the moment - I cannot afford to be paying out over ?44 for an advert, only to end up being invisible to clients on that site. Even Adultwork, with all its negative points, seems preferable to this kind of treatment right now, and that is really saying something!