I've posted something similar about CSA before, DS dad according to the CSA doesn't have to pay child maintenance as to them he is still classed as a child, so i decided to call CSA to explain his 18, has a job and in no education, to which they said he doesn't have to pay as his mother still get child benefit for him!! DS dad doesn't live at home which i told them but CSA said her child benefit claim for him is above board and their is nothing i can do!, AIBU to be SO pissed off a 'young man' with a full time job is getting out of paying towards his sons living costs because of his mother!