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Thanks Mamya, and Peter. I am going to give the council and CAB a ring now, see if I can get some advise which I can then pass on to him.
It really angers me, because there has been so much wrong with this house that I have resolved myself, out of my own pocket, and the one time I ask him to get something fixed as soon as possible (as it's not ideal to just have a hob to cook on with two children) he pulls this card on me.
Thanks again, I will give them a ring now.