Just a general note (especially as that site appears to be long vanished now - but there will be others doing the same scam very soon, I expect), as it is currently understood by any and all within the sex industry, there is almost zero market for non-sexual escorting.
The reason for this is as follows: Any client can pay any amount from about ?100 upwards (sometimes even less) to receive quality companionship with sex included. He can also often spend a little discounted-rate time with an escort if he wants to socialise but does not want sex. Even if he chooses the second option, with an escort he'll always have the option open to pay more and receive sexual services if he changes his mind. There is, therefore, really no reason for anyone to pay money to spend time with someone who will not ever have sex with them (outside of very rare particular arrangements that certain individuals may have). There is
certainly not a huge industry around non-sexual companionship because there's no decent money to be made from it.
I'm sorry you lost money, LizzieG - though if you paid by credit card, you might be able to claim it back? - and I'm not even sure this particular "agency" was a non-sexual one since their site has disappeared. But it's a common scam and for the benefit of anyone else who skims this thread, I wanted to explain just why nobody should ever pay money to join an agency that promises things which are impossibly unlikely.
Do check out http://www.saafe.info (the main site here) for further information if you decide to pursue sex work seriously, and if not, good luck with any other ventures.