Looking for story

Hi,

I'm looking for a story I read some time ago.

It's about a woman that is abducted and forced to become slave. She is being trained by several people.
The place she is being trained at is somewhere where more slaves are being held and trained. After training is complete the slaves go to other masters.
Specific things I remember about this story is a scene where people are playing badminton and a scene where she is being punished (for attempting to escape?) by being tied to een statue and everyone can use her.

The plot line seems vaguely familiar. If it is the story I think it is, she was abducted from a petrol station, and part of the training was that different coloured jewellery indicated different status amongst the slaves. Also that the main character refused to eat one type of vegetable, so was served a whole plate full of it. And that her first 'client' turned out to be the slaver who was checking out his merchandise. Even with those extra clues, it hasn't shown up in the search engines yet.