Boycot Game stores

I bought a 58 inch smart TV from game on the 26 November 2023 at game Canal walk firstly I was told there was only 1 TV left in stock and was told they need to test to see if it works I waited more than and hour before getting the TV I was then then told that they looking for the box where they just took it out to see if everything is working and that someone must have moved the box after another 30 minutes the guy that helped wrapped the TV in bubble wrap and styrofoam he said that they couldn't find the box however the TV only worked for less than a week the screen kept going black I then called the store and was told that the TV that was sold to us was a displayed TV and there's no out of box garentee I was extremely furious by this information I then asked to speak to management till today I have not received a callback I called customer service and explained what has happened then then said they will have to send the TV away to be fixed I told the lady I spoke to I don't want that it's still under garentee I want a new TV or a full refund I sent proof of purchase and all over requested information . . I still never got any feedback from them as well I'm disgusted and the services they provide I want a refund or a new tv ... We should boycott game for constantly selling faulty appliances and technology .