Complaint about false advertising

On the 03/01/2016 as I was walking around at Tygervalley mall I was attracted by a poster that was advertising the Bras and on the other side it was the panties. On the poster it stated that if you buy 3 Bras you get 60 % off, 50% off for 2 and 40% off for one. and for the panties you buy 7 panties and get 60% off. The bras and panties were below the poster in boxes. <br> I first paid for the panties and the discounts went off without any hustles, and according to my expectations. When it was time to pay for the bras they sang a different tune, that the Bras were already on sale (even though I found them in the boxes and they did not even have the red sticker to show that they were on sale, they still had what looked like the original price tags) and they could not be reduced any further, mind you this was not stated on the poster. So the price you see is the price you pay, so I asked when do the 60,50,40% discounts apply?<br> <br> I sent an email to their head office yesterday, and they have not responded<br>