Broken communications

I have been separated from my partner for 9.5 years now. Initially it was amicable but recently he has refused to pay anything (complicated by the fact my daughter stayed with him for 2 weeks following a dispute with mum!)I have also upset him by telling some home truths. However, this child now 17 is trying to make up for him not paying whilst doing her A levels she is trying to work but I say it is his responsibility! She doesnt want to upset him ? She has been a special one since divorce - she was 7 and started self harming at 11 and under CAMHS for the last few years. She has been amazing and got through her gcses despite meltdowns and having to cut herself in the school toilets.
She has gone to college with no money for food or transport ... complete self centred sod!
I have made up for his short comings financially as I believe no child should suffer because of divorce but I am in financial difficulty through getting into debt to "keep things normal"
The change has happened since he met his now wife on the internet... she moved down south leaving her older children (one with special needs) and they were married within a year.
I need to do something to make him responsible - he is making her life so hard and I try to do what I can but why why why - a child that has already suffered so much has to have this done to her? Ive told her I need to go CSA - he hates me now but every penny will go to her as she is moving in with her boyfriend which is not what I want but do believe at 17 we should support financially. Help?!

Hi Catfoley

You don't say whether you were married and whether there was a financial court order, or any previous CSA assessments?.

child maintenance Options now deal with new Child Maintenance Claims or re assessments for old CSA Claims.

The two issues here are:

1. You could not claim maintenance for your daughter if she moves in with her boyfriend;
2. If she is living with you, she would have to be in full time education, with you still claiming child benefit for her to claim child maintenance through Child Maintenance Options.

The only other avenue I could suggest is going down the mediation route.

Deborah