Supercession: The Powers of the CSA to Supersede a Decision

Does anyone know the law behind the HM customs and revenues web page which states the following, as judge will not acknowledge this in CSA case. CSA want to close case, judge will not allow due to Res Juticata, even though young person receives income support and tax credits for their own child. Website page says the following, what is the law regarding this please? HMRC Re1198 - Maintenance payments: Child Support Agency Assessments: When do payments under a Child Support Agency assessment end? A CSA assessment does not normally show a cessation date as it should be reviewed at regular intervals by the CSA, usually every two years. Payments will normally end when a child reaches age 16, unless they must continue to age 19 to allow the child to complete full time education (but not advanced education for a degree or similar qualification) or to age 18 if the child is registered for work or youth training but has not yet started youth training or found work which will last for more than 12 weeks after he/she reaches age 16. If the child receives Income Support in his own right he ceases to be a 'child' for the purposes of the CSA.

Unhappy Fault of CSA I'm really worked up at the moment because of this set of incompetent idiots! My husband recieved a letter from the CSA today after a reassessment of his finances. He has paid £40 a month for the last 5 years for his 2 children, this was the amount the CSA told him to pay at the original assessment. My husband was never married to his partner and has fought her in court for the last 3-4 years to be able to see his daughters. We only met just over 2 years ago and got married last year, And I love his daughters to bits and they love me too . I am disabled but my benefits cannot be taken into account because Im on contribution based (I worked 32 years fulltime before I could no longer work). They put his payments up to £45 a week and was being backed dated to December last year, he rang them to find out why the arrears. My husband explained he would pay the new amount but as he only comes home with £800 a month it woud be impossible to find a £1000,00 plus. He was then imformed that even though he had paid what he was told to pay he actually owed £7,500.00 in arrears!!! And they are going to take £267 a month now which there is no way on this earth we can afford and this is down to very bad work practices of the CSA and not my husbands fault, he would have paid the correct amount if he had been told it 5 years ago. Im just wondering if anyone could help please, surely they cant demand he pays for their incompetence????. They actually told him it was his employers fault, how the hell they worked that one out I dont know. I really dont know if we can afford to stay together anymore and its heartbreaking. His ex actually had me investigated by the police and social services 3 weeks after we got married because she and her mother forced my stepdaughters to say I had assaulted them with my walking stick!!!!!!!. Thankfully the police and social services realised it was a pack of lies as the girls stories kept changing. I have a fantastic relationship with them