Accuses Customers of Dishonesty

We bought a tv yesterday from Makro off the display. Got home installed the tv and it was damaged. Went back yesterday to show them a picture, first accused us of switching tv’s and told us they will check the serial number anyways took the tv back today, while i was standing at returns, another family was having an argument with the sales manager, at first i thought they were being unreasonable until it was our turn. The sales manager spoke with a condescending tone, accused us of malicious damage to the tv. I kept telling him that he has no proof that it was us (I do believe we are honest people) and we have no proof that it was them when they packaged the tv. When they put the tv back today after testing it while we were standing there it hit the floor, i told him that he just damaged it more, when he plugged the tv back the damaged spread across the screen, I tried to tell him this could have easily happened yesterday. All I expected was him to tell us that unfortunately there is no way of knowing who caused the damage and the tv has to be sent to be evaluated. Instead he told us to take the tv back, get our own assessor because frankly this has nothing to do with Makro and he kept accusing us of being dishonest and refused to hear us out or to even pacify the situation. I am disgusted by the way we were treated today, and as much as I am aware that our R25k will not make a dent in your profits, i hope this complaint gets to the right management to educate your staff on treating your customers with the respect they deserve.