Product is off - Consumer Complaint for MAKRO - Head Office

I bought Chicken polony at Makro Port Elizabeth on Saturday. I opened it this morning for lunch for myself and kids. When I tast the product it was sour myself and my husband is very cross now the children had to eat it at school this is not the first time this is happening first the milk now this. We are regular customers. Hope you get back to me coz we going to take this futher.