Pick n Pay Hoodwinks customers with non-existent discounts

I was at the Pick n Pay Hypermarket Northgate. They had several specials with items marked down. However, 4 items in my basket that were supposed to be marked down were rung up at full price. This equated to R80. Who knows how many customers were hoodwinked with this. Then, after being sent from pillar to post to request a refund (but first being subjected to the Pick n Pay employee sniffing what sounded like days of backed up nose mucus), I get challenged that I was wrong when all the Pick n Pay employee needed to do was understand what I was saying, everything could have been resolved quickly and without any fuss.