My ex gets paid around £2,200 per month (take home pay). He has very low rent (approx £300 per month), barely uses his car, doesn't really have much of a social life, shares utility bills with his housemate and then there's usual food, phone, TV etc. He pays me £360 ish in child maintenance per month. He doesn't often do anything with the kids and they rarely go to his house.
Meanwhile, my total income (earnings child maintenance, everything) is around 300 less than his per month. I have the children almost 100% of the time so my food bill is way bigger than his. My rent is double what he pays and I spend way more than him on petrol. Yet he is claiming he is skint. How????