My ex has just decided to reduce his monthly payments to the children. The amount that he pays has no relation to what he earns or how often he has the children. Where do I stand? He won't discuss it with me. Do I need to go down the CSA route? We have been separated for 4 years and he has never paid anymore nor I asked for anymore than what was initially decided regardless of salary increases etc over that time. I find this so upsetting...