Shoprite -plumstead used merchandise on selves

Disgusted by service delivery and stock of this shop in plumstead- I got home to find half my container of yogurt was left in the tub- it was sealed and looked perfect in the fridge- I feel they are doing this with all the items - last year I had a argument with the manager as the eggs is the packet was less than another packet/ Can someone PLEASE INVESTIGATE THIS MATTER. this is ****************. I will never buy from that store again.