but still can't work out if the agency is real or not
Fortunately, there is a simple test:
if they want a penny off you before you have cash in your hand from a client, they are a scam.
This lot fail that test.
This site's terms and conditions are very familiar - they're a cut and paste job with some of the words changed, so it may well be the same lot of scammers yet again. See
E. Solely provides an advertising and marketing service to private (independent) Companions, who wish to advertise their services on our online brochure, we are not Companions.
Ha! They've taken the text from somewhere that said 'Escort Agency' and messed up their search and replace.
Anyway, this is them saying what they actually are: a very expensive ad site. Why would they want you to pay 'insurance' when all you're doing is pay them a fortune to advertise on their site while they laugh all the way to the bank because:
F. GRACEFULPARTNERS does not accept any liability or responsibility should your advertisement on the online brochure fail to achieve a response.
Regardless of what they're telling you now, before they have your money, they know there is really no-one waiting to book you. See elsewhere here for the reality about social escorting.
It's not clear how anyone would book you: potential clients have to supply various details and hope to be contacted. Most of these scams then want the client to 'join' at the same extortionate rates, so in effect victims are advertising to themselves - no-one else can see their ad.
Well done for not paying first and then checking them out.