I had one who recently screamed like that for the first two weeks and then finally started to calm down and by week 4 he was totally fine and is now a great little guy and so so sweet. Are the parents wanting to pull the child out? You say they want the deposit back, so I am guessing you have discussed stopping care. If you have provided the two weeks of care then they should not be refunded as you provided the care and they ahve to pay for it whether the child cried or not. Personally I would give it another week or two if you can, but I know it is really hard and I wasn't sure if I would make it to week three either. Good luck!