Be VERY careful. There are so many traps here to describe.
My first response is to run away as fast as possible.
Drop it. Walk away...quickly.
Getting her to a safe place is important.... in addition to everything already advised above.
I know the UAE does employ lots of women from the Phillipines to do the same work you described. So, this part sounds legit. As for the rest of the story, I think the Labor Board and/or FBI should be contacted. This may be normal practices in their homeland (UAE) but not in the US.
X2.