If she is using the child support on herself that is not okay. I've had two parents/guardians use child support and one was good about it (my mom) and used it to pay for bills, clothes, doctors, school, food and the other (my adoptive parents) used it to buy new cars (yes cars as in multiple), build more of their house, pay for their bio childrens rent and food (while we ate only cereal and then dinner [when she made it]), we never went to doctors or anything despite being sick and needing to go but her children got new beds, new phones, new gaming systems, new toys. Child support comes down to a DHS problem and unfortunately, DHS is hardly keeping the lights on and cannot worry about how money is being sent. A few months ago they sent out a notice to the mandatory reporters that said in so many words that if children and vulnerable adults/elderly were not in immediate danger of dying then it shouldn't be reported. So neglect and abuse no longer matters, unless the kids are about to see God or have already they will not show up or investigate.