Bad quality false advertising

I ordered a cutlery set and a cast iron pot set from Groupon a few weeks back. Both are of very poor quality and secondly they sent me a complete different colour. I checked repeatedly on the site to make sure the goods were proper. The quality looked very good online. Once I received the order then only did I see that both were not what I expected at all. The cutlery set is a cheap silver and I can't even cook pasta in the pots , everything gets burned and the frying pan is ruined after one use. They stain easily and can't be removed. I'm very disappointed and will never buy dishes from Groupon again!!!