Selling old rotten bread

I went to Pick n Pay Vanderbijlpark to buy a bread and some juice. About 2 hours later i opened the bread to find it squashed and rotten. I returned the bread and asked them why they're selling old rotten bread. They said it's because they haven't recieved fresh bread. So does this make it okay to sell expired rotten bread ? The lady (Manager) then said they would replace my bread. When i got to the bread isle i realised that almost all of their bread is expired. I got infuriated by them wanting to exchange one rotten loaf of bread with another. I just put the bread down and left in disgust, no refund nothing. Time and money wasted.