My ex, who left about 6 years ago, used to take our two around four/five times a week, pay me £500 a month, bought me a car, let me keep the family allowance and even when I had my new boyfriend move in a few months after he left, he was OK with it until 3 years ago when the company he owned went into liquidation. He also started seeing a girl around this time. I noticed he was more stressed than ever, had to downsize his car and move into a smaller flat. Now he works full time and lives with his girlfriend. He only takes our two every other weekend and thinks £300 is enough in child support. He told me that with bills and back debt after his company went burst, he is struggling a lot. I think its his girlfriend - but our children adore her so what can I do? She works from home and when I've asked him if she can take the children after school a few times a week (he works long hours), he told me it is not her responsibility to watch our children. I work 3 days a week but I need some time to myself aswell.
He also gave the children mobile phones at Christmas (even though I said no because I think they are too young) so they can contact him anytime. I always let them call or text their dad on my phone.
Has anyone got any advice on what to do about this?