Damaged tv

Bought a tv online and it was delivered on 17 April by Centurion branch. TV was delivered and it was plugged in by the delivery guys and put back in the box. When we took the tv out and added the stand plugged it in the tv was damaged and it was redlines all over. After numerous phone calls to them and sending photos we where told they can not replace the tv the claim is rejected because there guys know how to handle a tv. After laying complained at customer care we where told the area manager will phone but he never did. When we phoned to follow up we where told the claim was rejected. So if we did not damaged it who did??