My husband (soon to be ex) has been told by the Child Maintenance Service that he has to pay £25 per week to me for our young son. This is despite earning between £5-600 every week. CMS are going by HMRC records from 2 years ago when he was self employed. I have pleaded with them to try to help sort this out. They are not interested in children or their families - that is quite plain to see, because they will not help at all. We split because I left because of Domestic abuse and this is just the final devastating blow to me. He is being allowed to carry on controlling my life, still. Has anyone got advice that could help. He is already living in our mortgaged home and has locked up from the inside, so that I cannot use my key to get my belongings.