Game Damaged TV

My mom bought a TV at game in Gateway Umhlanga and the tv was delivered on Thursday 21/05. The delivery guys delivered the tv only to find that when my brother came home and he removed the tv from the box and plastic wrap it was damaged and when he plugged it, lines appeared on the screen. My mom took back the tv to the store on Saturday 23/05 and was told that it was unfortunate that she signed for the delivery and one of the delivery guys showed a very dark and blurry picture that he took without it being fully unwrapped and he damaged area not appearing. I have never been so disappointed and appalled at how these guys took advantage of my mother because she is elderly and they thought they could pull a wool over her eyes and try and get away with delivering damaged goods and make it look like it was her fault.