My bed was delivered to the wrong address

I went in to purchase a bed on account and had all the paper work ready for the application. I was approved for the bed and was told the bed would be delivered the following week and that I would have to go in and pay my deposit before the bed could be delivered. I went in to pay the deposit and included in the deposit was a R300 delivery fee. The day of delievery came and my bed was delivered to the wrong address after telling House and Home countless times where to deliver the bed. I had to arrange to get my bed with someone who had a bakkie to get my bed to the right address. I phoned the branch and expressed my unhappiness and demanded that I get my delivery fee back, as it was delivered to the wrong address and felt that it was unfair of them to expect me to pay a delivery fee when the bed wasnt delivered to the right place. They then said I would have to go in to the branch and re-apply for the bed so that the delivery fee can be cancelled out. Every single time I have gone to get that done the saleman who helped me purchase the bed was nowwhere to be found or had some kind of excuse. Now according to them I owe them R20 000 and all of a sudden I have 2 accounts with them!