Hello denise,
The issue of money should have been top priority when the client asked to burrow your time to train the replacement.Of course money is always a touchy subject when it comes to on the spot situations and activities. If you don’t speak up and clearly project your ideas you will end up losing money and wasting your time. You should call the client ask him about compensation, be firm with the matter in explaining your case and if he declines charge it to the game as a lessoned learned and move on to your next project. Chances are he’ll be needing you before you need him.
Tahir.