Very Bad Customer Service: 4 weeks to return Samsung 49inch Smart Tv

I have been struggling for the past 4 weeks to return/refund a Samsung 49 inch smart TV that I purchased on 23 Nov 2018 at Dion Wired Blue Route Mall. I had no other option to get in contact with Cavendish Square's branch as Blue Route closed down. I have never in my life received such bad service from a store from staff being rude to *********** it is just very bad. Its a huge inconvenience to be without a TV for 4 weeks, the TV screen just went black. I have been calling everyday even offering to bring the tv in with my bank statements for proof of purchase as well as the box with the barcodes on but I am rather getting rude staff who is telling me that if I bring the TV in they will put it out by the door, I am at wits end and now at a point where I want a full refund and will purchase another TV somewhere else. I have been told 4 weeks ago that a Samsung Representative will come out to my house to assess the TV well after all the calls I made and taking all the bad treatment from your Cavendish Store I want my money back. Your Cavendish Square Store staff seriously needs customer service training.