False/misleading Advertising

went to Makro Amanzimtoti yesterday to purchase a Hisense TV.Advertised on the display with a free sound bar at R16999.Upon purchase I was given a different model sound bar also a hisense brand.When I disputed this with the sales person and manageress I was told that the sound bar on display with the TV was a higher priced/model and was not with the combo deal. They stated the display was just " There ".And if I had looked at the brochure I would have seen that.My point is that I was a walk in customer -intent on purchasing a TV - secondly the salesperson that assisted me at no stage said to me that this combo deal does not come with the sound bar displayed with the TV in question - the manageress was less than helpful - the salesperson offered a R200 gift voucher - when I stated to the manageress that I will take this matter up,for misleading/false advertising.She said to me that I must do what I want?