We went to Makro Meadodale on Friday for shopping,we bought 2 box of evergy bar chocolate that were on sale ,only to find out that prices were not placed correctly when we got to the till

We went to Makro Meadodale on Friday for shopping,we bought 2 box of evergy bar chocolate that were on sale ,only to find out that prices were not placed correctly when we got to the till. We waited for food manager who informed that they won't give the product with the amount tht was advertised on,surely someone place it by mistake it was not supposed to be there but hows that customers fault ? She further said ,their customers knows the prices and they would know that it doesn't belong there 😒,i felt less the customer since the statement clearly said you are not one of us indirect.