hey mari,
You are like bexy says your the primary carer so you can take sophie whenever you want wherever you want. He can only contest if your going abroad for i think longer than 2 weeks and if its over time he would normally get to see her?
whats he saying to threaten you? he shouldnt be doing that.. need to tell him you wont stand for it and show him your serious about it. He should still be paying even if hes had to sign on, CSA would take £5 a week, its a drop in the ocean what is needed or morally right but its something, if he could give you even that for now till he gets a job and you could put it into sophies bank acc.. its an extra £20 a month for her which would add up eventually.
Sorry to hear about sophies epilepsy, At least it was something treatable easily enough with medication and not anything more serious xx