What are my obligations would you say

[Newbrummie]

Dickhead, has been telephoning his children 3 times a week up to Christmas. The kids and I then returned to the uk and now he is demanding skype's. Now firstly he hadn't paid a cent in child support since Christmas, secondly I cannot afford wifi, he's been given a landline number he can call but if course that doesn't suit as he'd have to pay for the call.
I can't seriously be expected to do this in costa or something using their wifi can I ? The library have said no in no uncertain terms.

Ah that's interesting ... God he's an idiot isn't he

if I don't do x he won't do y

What's 'y'? He doesn't do anything anyway does he?

I was rather hoping he might do the decent thing and give me the martial home as he does bugger all else but yes you're right he's even arguing about that