She replied and said that payment on Thursday was no problem, but then went on to add that she was confused as to why she paid three weeks' holding fees if she was not able to send him for free...I explained the premise of a holding fee by quoting the contract that she read and signed. She does not seem very pleased, but she has agreed to pay up. Keep in mind as well that she came with him TWICE last week and did not pay, and then dropped him off at my house for 4 hours on Thursday without paying me, but still expected the next three weeks to be free, as she paid a very nominal holding fee (which worked out to be less than $100 dollars, and they signed in June!). My word!

I guess I'll give it a week or two before I decide what to do next, but between her expecting me to work for free and her son's issues, I am not optimistic.