What can the non-custodial parent do if they find out the child is not living with the custodial parent, but the custodial parent is trying to get child support for that child? My ex has custody of my child but she does not live with him even though he tells the friend of the court that she does, what should I do? I need help fast!

Counter file for custody, provide proof of where the child is living

What is her living situation ? How old is your child ?