I sent a box of items in excellent condition but 2 items were 'rejected' as being 'damaged' (no reason given) and I will never see them again and won't get paid. Both were hardback biographies I'd never even read!
If I was into conspiracy theories I'd suggest that some companies might 'factor in' to their business plan the refusal of certain items, on purpose to bulk up profits but I have no evidence to suggest Zapper do this in any way.
Please note: If anyone is thinking "maybe they were in poor condition, he is just wrong", believe me - for the sake of a few pence, I have no reason to waste my time sending a box of items that I know will get refused. We are talking the cost of half a cheese sandwich. In fact, it cost me more in time to prepare the box and take to post office than the money I get back.