Pick n Pay Arbour Crossing

Pick n pay Arbour crossing. I took a plastic container as price tag showed R199. I get to the till and price shows over R300 so I dispute it. A staff member goes to check and says there is no such label. I then go with and find the holder is there but the label has vanished. I dispute this because I know what I saw. All I get is excuses and they have lost all credibility in my eyes.