Expired products Relabelled and sold

Seeing a new product on the shelf I was delighted to try it, checked the expiry date on the new beef caneloni ready meal, it shows the 19 Dec 2017. Got home while unpacking turned the product upside down, just to find another sticker showing 11 Dec on the bottom, half peeled off. I AM DISGUSTED!!! Selling expired products just putting on a new label! How many other products are being relabelled??? Is it ok for people to get food poisoning as long as you sell old stock?!