Your probably right Reggio but I do have a one week deposit that was provided at contract signing. I used to do a 2 week deposit but in my case at the time that my clients were signing on i was changing my daycare from a before and after school program to one for little ones. I had tons of experience because i did little ones for 15 years prior to the b/a school kids. I didnt have a playroom set up or anything just my word that I would create a stimulating environment. I felt at the time that 1 week deposit was sufficent given that they had to trust what I said as I could offer no visuals. That will change for anyone new coming into care.
If she doesnt come back, i'm fine with it. I will consider small claims court but most likely will just enjoy the fact that she will have a difficult time finding someone else to do the hours that she wants. Not nice I know, but karma is a bitch.