I have 3 children with me ex, they are 7, 3 and 10 weeks, we split just before I found out I was pregnant with the youngest. he was awful through my pregnancy and decided he wanted nothing to do with any of the children if I decided to continue with the pregnancy. Which he has stuck to and hasn't seen them in 8 months, and never seen the baby. The thing is I don't receive tax credits for the youngest as she was born after the cut off point. Ex doesn't pay a penny in maintenance and as he gets cash in hand there is nothing they can do. We haven't spoke at all in the last 3 months. Before that he would contact me every month or so but hadn't seen the children. I'm struggling to get by and I don't see why he should get off Scott free. I'm wondering if he has started working in the last few months, but I am not sure. Would it be a waste of time contacting them? Since I have to pay now to open a case aswell.