Cheese with mould- No quality control on Food

I bought a pack of dairybelle sliced cheese from Pick n Pay in Kelvin yesterday evening. While making supper, as I was about to put the cheese slices into the meal, I realised that the cheese was infact badly moulded with green all over. What if this cheese was put into the meal and the whole family got sick? Whay is there no quality control on the products on your shelf?I was feeling sick to the stomach after just looking at the cheese!