Csa what happens next

[Shaznsi3112]

My x has always paid for his kids anyway went to court didn't want to know he had paid still says he is to pay .went to mp with evidence got 15grnd took off .have to still pay.10grand car have just took the mothers word that he hasn't had his kids etc.i did his daughter's prom while she was away with her bf.took one away which cost us a grand.paid phone contracts and get the kids n they stayed at his 3nights a week.anyway he moved in with me last year with only clothes they sent bailiffs couldn't take anything as all mine so they have refferd back to the csa so what happens next he has paid but accepts he has no proof for the money he give his kids who were 18 at the time.we have offers to pay small amount back monthly but they won't except