Unfortunately, it sounds like it will just be a big lesson to have learnt. Next time be sure to ask for a menu plan, if they smoke or not, what they do during the day etc and please make sure you have a contract!! It covers both parties in situations like these

I get that you're upset about not needing care anymore but in her defence, I'd likely do the same. I only request payment 2 weeks at a time but once money is paid there are no refunds. Of course We spend our money once paid, just like everyone else. She couldn't have known that you'd back out of the agreement so I don't think it was morally wrong for her to spend it or to say no refunds.