You won't receive your furniture from Neoset Canada

I bought a bed from Neoset Canada on April 2008, and I fully paid for it from the very first day using my credit card; they told me it was going to take 6-8 weeks to get it.
On June 2008 (after 8 weeks from the moment I bought it) nobody had contacted me, so I called the store, and they said there was a delay, they asked me to be patient, and that the bed was going to be delivered by the end of July/08.
At the end of July, same thing happened, so they gave me a small discount to keep me happy. On August/08, being concerned, I called the Head Office, and talked to the President, Mrs. Eleanor Reynolds, who apologized and explained to me that the order was delayed on its way to Toronto, but she gave me "her word" I was getting it on Sept.27/08, and that I was going to receive a new discount (which I never got).
Needless to say, by mid-September nobody had contacted me, I called Mrs. Reynolds back and she told me the bed was discontinued and that I was not going to get it the way I ordered it, so she gave me other bed options different to the one I wanted in the beginning; none of them were satisfying.
With no other choice, she offered a refund (less the small discount they gave me), and I accepted it, but when I asked her who was going to be responsible for those 5 months of interest I had been paying on my credit card, she refused to honour them. She refunded just what I paid on April, less the discount given on July.
It was not my mistake to be informed the bed I wanted had been discontinued after 5 months of buying it, and fully paid for it!
This is just lack of responsibility, lack of commitment, lack of respect and lack of seriousness from Mrs. Reynolds and Neoset Canada.