Hi OP,
Be warned - Gumtree have recently tightened up their rules regarding any kind of adverts from working girls.
I advertised on there last week for a driver, as I have done several times before over the last two years with no problems. The ad was clear and professional, was posted in the Driver section, and even had a disclaimer on it stating "This is NOT an ad for adult services. Any responses that are not genuine job applications will be deleted and ignored".
Still, they refused to post it as I stated that the role on offer was "escort driver". Not only that, but they will not refund the money I paid for the advert (?40). They say this is their policy now.
In addition they have "restricted my access" meaning I cannot send or receive emails through their system; and nor may I post ads, or respond to ads in any other category.
So, be warned, if you post any ad that mentions in any context that you are a working girl you can expect them to refuse your ad and keep the money you paid as well. Plus they will (in effect) bar you from using their site.
Hadley
PS Am in an ongoing war with Gumtree over this and will post an update when resolved, if anyone else is interested