Takes a bow
!
Just furious at his evading the problems & clear double life. (You could even wonder if he has a new family )
He is stalling his return, any other set up is inevitably going to cost him more.
I, personally, would get on to his company, & tell them that he has seen his children for 18 hours in 18 months (whatever), he is refusing to give you sufficient money for food & house repairs, quibbles over school uniform,clubs, the kids are dressed in supermarket clothes, & you haven't had any new clothes in 2 years., You are unable to get the state assistance as he is running away from his responsibilities & not signing the paperwork, up to & including refusing to even come home for a w/e. whereas he goes for repeated w/e jollys elsewhere.
he has effectively put you in prison & you are asking nothing of him apart from your civil rights as a human being, to be freed from his domination.
If it is an American company they will probably look on this with great disapproval.