If she goes into the sales office and politely lets them know what is going on they should give her the deposit back especially if she has not signed a purchase agreement. If they get salty then she can come back and let them know she will be filing a complaint with the Better Business Bureau. She can also ask who the broker is for the sales office, and she can ask the broker directly. If the broker gives her the business, she can politely let the broker know that she will be filing a complaint with the DRE. Again this is assuming she has not signed documentation acknowledging the disappearance of her deposit and agreeing to it.