Brand new Faulty Smart TV - Game refer to 3rd party

I bought a 70" Hisense Smart TV from Game Worcester on 27/11/2024 and a week later I went back to inform them that the TV have lines on it. They deny any responsibility and referred me to log a call/ repair/ assessment to Hisense via their website. I did log the call but have not received any feedback from Hisense or a date on whether a technician will come and look at the TV. When I asked the store assistant how long that will take for a technician to come he said a week or two. What happened to the 7 day warranties that shops have when buying an item.

I am wondering how you can buy something from a store and then they claim no responsibility when faults is logged. Its a brand new tv for which i now have to wait a week or two for Hisense. How does a store sit back not take any responsibility/ assist after taking my money???? I do not want repairs done on TV that is now 7 days old. I think I deserve a new TV without any faults.

I also bought a fridge from them but my concern is that should something be wrong with it then I will have to call Defy??????

I will not buy anything or recommend anyone to buy from Game just for the fact that you have to deal with a third party and the store deny any responsibility.