Formal Letter

I am writing to complain about the goods and service in one of your supermarkets.
Last Sunday, I visited my local Cheap-O Supermarket in Bristol To buy groceries, which you advertised as being extremely good value. However, most products were being sold at a price mush higher than in other shops, and when I got home, I also foun aou that nearly all the dairy products I han bought were past their sell-by dates. I think overpriced food that has gone off is anything but good value!…