Wrong order delivered and delayed collection time

I ordered a bedroom set from homechoice and was delivered in the house in August but wasnt in the house when it got delivered. I got to the house to discover that am not happy with the item delivered. I called HC Customer service next morning and request they collect the item from my house since its not what i requested. HC promised they will sent their couriers but that never happened. I called HC every week to remind them but they said Couriers will come to no avail. In December i called and remind them to come collect but then explain to them that it rained and the boxes that the item was packaged got wet and i threw it away and the person said they will call me since their company policy dont allow them to take an order that is not in their original packaging and said she is going to talk to their team leader. From August HC is busy charging me for the order irrespective of the fact that i ask them to take it and now my account is on arrears. I am now worried that is this the way HC treat their customers? Is it my fault that HC didnt arrange in time to collect the order and waited for almost three months until i lose the boxes? What must i do with this item i didnt order now?