Returning Goods

I don't understand Edcon's new policy not to return goods bought for a full cash refund, i went to return a dress that didn't fit me well, I was told to take a gift card or exchange it for something else, there was nothing that I liked at LEGIT but I was forced to either return home with my dress until I find something I like, that is unacceptable my rights as a consumer are being violated, I have a solid reason for not wanting that dress so now I must take something I don't want instead of me looking for something that will fit me elsewhere.