We should all complain about faulty goods, or anythingthat we are not happy with.I am always polite, but if I don't like the response, I ask to see the manager.Most Brits are not good at complaining [somebody may LOOK!]In the end, if enough people complain then something is done about the product.It's as well to know your 'rights' though.If the product is really faulty and you don't want another [maybe also faulty] ask if you can have your money back, most shops will say yes.If it's not faulty but you change your mind about wanting it, then it's up to the shop and it's policy. Most shops will allow you to choose other goods to the same amount, but some may flatly refuse [and it's their right to do this.]If the shop puts the price wrongly [in the window] then it is NOT your right to pay this price for it.A lot of people think it is.The shop is not legally obliged to sell you anything, if it doesn't want to.