Woolworths very bad food

I when to woolworths springs mall on Sunday afternoon I bought the cheese that's 2 for R190 sweet milk when I got home I opened the first block so we can use it on the food. Thursday night my daughter asked if she can have some cheese only to find that the three quarters block that was left from the cheese has gone bad to the point you could smell it I am very disappointed and disgusted that we pay top weck for woolworths foods and it goes off in 4 days of opening it even when I stuck it in a sealed container it's so bad I gave it to my dogs to the point they even got sick from it. It is not the first time this has happend woolworths cheese goes off within 2 to 3 days of opening. I have bought cheese from other places and it has never done this.