from personal experience, the CSA are useless, an i know a lot of other people think the same. Your kids will grow up to realise that you are the one who brought them up, supported them, provided for them, cared for them, loved them and were always there for them, when superdad wasnt! . in response to the your question i think u can just ring them and ask them to look at case for you. My advice to you is to look at their web page, look at private agreements and suggest to your ex that between you, you draw up a private agreement. Advise him if this cannot be done you, or if he fails to pay up regularly, you will ask the CSA to deal with it, my guess is he wont want the CSA looking into !