I only found about about this site last week.
So as an AdultWork user I would not be aware of this problem girl.
One trick I found out is that if you do a booking form, a girl like this probably wont approve it.
But, as you raised a booking form you can still leave feedback once the booking time has gone by.
Ive done it a few times and the feedback appears as feedback in their ratings as opposed to positive and negative ratings,