Purchase of LG TV from Makro and Service

I purchased the LG 49 inch TV on the 20 June 2015 for R7 000.00. Due to my friend passing away in September, I lived with my mum from September to November 2015 thereafter returning home in December. On the 21 December I tried to put the TV on but it would not come on, thereafter I had taken the TV back to Makro on the 29 December in the hope it will be repaired however the suppliers only opened on the 18 January 2016. Makro customer service called me on 19.01 advising me the repair would cost R8 600.75, so I asked the lady what this cost was for, she did not have details and called me back on 19.01 with further details. The supplier said the TV would not be covered by the guarantee as there is an internal crack. I could not understand how an internal crack would occur as I have not bumped or damaged my TV from the time I purchased it. I then called the supplier and was told it is due to negligence, why would I pay R7 000 just to damage my TV. I called Makro telling them I will be picking up the TV on Saturday 23.01 as they have not been helpful and obviously blaming me but when I got to the store the TV was not there nor the store manager as he would need to make a decision.