Cash Crusaders Silverton l want my refund

Even now no communication from the management of Cash Crusaders in Silverton.Last month on the 27th of November lbought a camera but later found out that it had some issues took it back on the 13th of the following month looking for a refund.And l was told they cant offer me a refund because a camera it's an non appliance products the 7 days guarantee for those products has passed.Mind you l have already did my research and on the back of the receipt it says you have a 6 months warranty.Till to this day l still haven't received my money neither communication from the store.