Disappointed Customer!!!!!!!

I am so disappointed in Samsung and MTN for the way they have handled our unfortunate situation. My mother purchased her new Samsung galaxy A8 on contract about 3 weeks ago 4 days later she accidentally dropped it off the kitchen counter on to a carpeted floor and the phone completely stopped working it will now cost about R 4 000.00 to replace the LCD screen, how is it that such an expensive phone completely stops working??? Considering the screen did not crack and it had a Samsung cover and screen protector on this seems ridiculous that Samsung or MTN won’t replace the device with one of there hundreds of refurbished phones!!!