My mother moved into a nursing home on August 24 2012. she paid 635.00. On Sept 21 2012 we brought mom home to with us. We spoke to the social worker the nurse and the dr which checked her out and said she was good to go. the next day, the nursing home called and told us to bring mom back, they said in order for medicaid to pay she would have to finish out her month. Is this legal?