http://www.centresexualaddictions.com/
It's based in Dublin and I'm sure there are more around the country.
To answer you question about escort willing to fleece such a client then I would imagine that of course there are ones that would just like in any walk of life there are people who will take advantage. To be fair to others it would be hard to know how a person life is outside of a meeting.
People have good jobs or have made big money so it's not that far fetched that someone could see escorts a lot of times but appear that money is no object making it impossible for her to know what is actually going on.
I have no problem in admitting I am totally addicted to my Mistress, so much so I have submitted my life to her and I really mean I have submitted my life to her. Do I need help? No! I just need my Mistress.