Game Store Retail Park East London/ Very unhappy customer.

A 58inch Samsung Tv was purchased at Game Retail Park East London on the 03-06-2024. From day one when changing channels at times a very loud cracking sound occurs. Their previous Hisense Tv which was ******, did not do this. After approaching the sales man at Game several times ,they logged a fault. On the 05-07-2024 a Samsung repair centre technician came out to the house and witnessed the cracking sound when changing channels at times. Samsung Head office say its the Dstv decoder thats faulty,but havent proved it as 2 other Tv,s have been used on same decoder and no fault occurs. Game and Samsung have refused to refund or change out the faulty Tv. Very unhappy customer.