When I was homeless and unemployed, my ex told the CSA I was earning 35k

A few years ago I was homeless and unemployed, my EX partner told CSA I was earning 35,000 a year. So they assessed my claim and sent a letter to the address she gave them.

She then had all the kids taken off her and put into care, she has recently opened a new claim and wants all the arrears as well. I have argued that firstly I wasn’t working and then she also wasn’t caring for the kids. But they have responded that basically I can write to them, but they won’t look at old claims even though she lied and gave them false information.

They have told me I will have to pay £600 a month to them, my income is £1440 a month, my rent is £675 and council tax is £144. It costs me £80 a month to travel to work.

My EX partner and her new husband earn at least £70k a year, they have just bought a £300k house and have got a £40k camper van and a new car.

I now don’t have enough money to pay my rent, eat or travel to work.

What am I suppose to do 🙁

If I quit my job I have been told I won’t be able to claim JSA.

My kids will no longer receive any presents for their birthdays or christmas from me, even buying a card.

Oh and to top it all off, the other day my EX phoned me up and asked if I could help out financially towards the birthday party.