you shouldn't have to give him receipts, thats awful. the money is not just to buy clothes and toys, it is to put a roof over you childs head, help with electricity, gas etc
although not looking forward to it, i have just applied to csa, as i don't see why he should get away with not providing for his son, when he can afford holidays and new cars. he needs to face up to his responsibilities. can understand not wanting to go through csa if ex was violent, i probably wouldn't in those circumstances x