Taking extremely long to exchexchange damaged good

I bought a dining room suite from bradlows end of November on account and they have delivered the dining room sideboard damaged. I called the manager and informed him. He promised to exchange the product but never did. Every time I called he said I must call again to remind him the following day, which I did but in vain. I went to the store and found him and he gave me bad attitude saying he does not have a factory. I do not understand why Bradlows charges us for insurance if they still give us problem with the goods they damaged during delivery. Why must I pay for something I am not happy with. I called complaints department till today there is no feedback. It seems bradlows is just after sales and doesn't care about it's customers. I will never recommend them to anyone. This is the worst experience I ever received