My ex-partner broke up with me just after Christmas. We have an eight month old DS. I went back to work in January and my DS is full time with my parents until May when he'll go to nursery. Ex earns 40k and has checked CMS which says he should pay 300 monthly. This is fine for now, but when my DS starts childcare, the costs will go up considerably. He refuses to pay any more than the CMS amount. AIBU unreasonable to think that maintenance and childcare are separate?
Ex moved into a his mate's spare room paying minimum rent, whereas I've had to find a two bed flat which has doubled the outgoings in rent / council tax / bills when we lived together. In my mind, that 300 he pays helps to compensate for this added cost, plus food, clothes etc, and shouldn't include childcare