I checked out her website.
http://www.celineadelaide.com/new-page/
In terms of her screening requirements, I would not ask a current sex-worker for a reference in order to qualify to see Celine. In my experience, this will hurt your relationship with that current sex-worker and reduce your mileage during future appts. Sex-workers, just like hobbyists, get jealous. And if you call a current sex-worker and say 'Hey friend. I want to see another sex worker (and not you), so could you please give me a reference?', it won't do you any good.
The option of contacting Celine through your review board account is the one I would suggest, but then again, such action will limit your ability to provide an honest review of Celine or any other girl if they now know your account identity. Better to just find a girl that doesn't require any references. And lastly, I would not provide personal details such as a business website or anything of that sort. Girls tell their girlfriends EVERYTHING. Hookers tell their clients everything about other clients as well. Women don't keep secrets, for it is not in their nature to do so. And in the same manner, Hookers don't keep secrets. This B.S. about sex-workers having discretion is a lie - they don't.
You have to remember that a sex-worker is someone who lies about her job to her friends and family and everyone else. The sex-worker advertises to men she knows are in a relationship (married or dating) and by advertising the sex-worker hopes that these 'taken' men will come and fuck her behind their spouses or SOs' backs. So, the whole lifestyle of a sex-worker is one of dishonesty and a conniving manner. Therefore, don't expect your personal information to be kept in the highest regards, with great confidentiality, when dealing with these ladies.