CSA ‘lost’ my appeals

My ex had been asked for years for wage slips he refused so when he finally did which he bk dated 5 years but had already give tiff rent ones in 5 years befor.

The csa took his word and stoped my child’s money and told me I will never get nothink off him due to over payment that’s not my doin but the csa blanked me my 3 appeals went missin in the post this is a joke I haven’t had nothink for 4 years.