Hi I need some advise on what I can do about my 3children living with their grandparent while mother is living with boyfriend and I am paying child support to her. She does not use the money for them. She says she lives with her parents. But the children tell me that she sleeps at boyfriends every night and do not see her. She does drop them off every other Friday to me. But they do not see her.how can I prove this and get custody of my children. The grandparents won't even talk to me about this.