Rotten/expired products

I bought 2 gynaguards not long ago and they were on special, I was using one and days after I had a strong ******l burning. I went back to check the expiry date on both items I bought only to find out that they expired on the 19/02/2020 meaning they had already expired when I bought them. I also bought wors 2 and fresh milk (6pack) 2 weeks ago, the same day I bought the wors I wanted to cook it, it was slimy, green and had a bad smell. With the milk the first box was okay, they 2nd box was sour and the 3rd one. I returned the remaining three inside however the person assisting said that they cud only replace the 3 boxes which were not open. I am not happy with the products we are sold at pick 'n pay hyper Maponya mall at all.