Repair under warranty rejected

I bought a Lenovo Laptop from Incredible Connection Pietermaritzburg on 06 January 2015. In March 2015 the screen sometimes started to only flicker black when switched on and then worked perfectly for a few times. I gave the laptop which is still under warranty in at the Pietermaritzburg branch on 05 April 2015. The technician Nivash informed me that it will take 14 working days. Now after a month after receiving NO feedback whatsoever I phoned the store for a week everyday to get answers only everytime to hear someone will phone me back and again never did. I insisted to speak to the manager Nevel who informed me that the laptop is still at the suppliers he will follow up why. Now I get a call from Nivash who informs me that my lcd screen / card or something is cracked and that I must have let it fall? Seriously? Best part I must pay R7000 for the repairs on a laptop which I bought for R6499.90. And it will not be covered under warranty. So now im being accused of letting a brand new laptop fall which actually just had a black screen and other times worked as normal. Total ********. Even though at purchase you are assured hardware is under warranty for one year?? Not going to pay!