MRP home

So today I wanted to buy two pillows that was on the shelf advertised as R 99.00 when I took it to the till it was expressed to me that the items is only for display purposes and will not sell it to me for the price shown in store! Two pillows with pillow casings over and below the pillows is stipulated that it is R 99.00. How is that then that I cant buy the casing with the pillow for R99.00. This is the worst service I have ever recieved! What happend to the service of mrp! This is pathetic!!!!!