CSA now expects me to pay ANOTHER £40 from my wages

Having been shafted in my divorce settlment [leaving with no contents what so ever] being told to sue for my own belongings – i have a derelict barn conversion as the bulk of my settlment- ive fought 3 years in court for standard contact with my kids 3 times representing my self rather than give up.

The csa now back date me £1000+ bill and expect me to pay £40 extra from a wage that barley covers my mortgage under there new scam [as the barn is not livable its not my main resedance] but as its iver £65000 value its now added to my bill – mean while the greedy bitch rakes £1000+ a month from the DHSS has stopped working the 16hr job she had done and scams the system whilst im hammered if work i refuse to pay this and plan giving the barn away and i mean literaly