A tardy response rate

I am extremely unhappy with the response rate received from the Foschini Group, especially because my purchase was for their 3 for 2 sale which has since passed.

I confirmed my order on the site then proceeded to make payment, only to find that my order had been cancelled. I found this out when I tried to track my order. Payment, however, had been made. I sent them my bank statement to show that the money had made it's way into their account but it hasn't been processed. They told me to wait for two weeks for a response. It's two weeks later and still nothing. I am utterly disappointed and would appreciate if a refund would be issued,seeing that the sale has long lapsed.