Customer Service gone wrong

Purchased a tv from Hi Fi Corporation Menlyn.One was on special that was advertised.The salrs assistant then tells me what a bad product the Sansui was and I should rather go for a more expensive option.Sure sales assistance should be there to advise not bad mouth products? En route to pay I was again bombarded by more sales assistance.After paying I tried to collect the tv at the door and was told that it needed to be opened to be check for damage. It was a sealed box, how bad is hi fi corps stock handling if each and every product? The store manager then comes over to assist. Picks the tv up off the counter and drops it onto the floor.No wonder each product must be checked if that is how the store manager who should set an example handles clients purchases which they have paid for already.This tv was now exchanged for another and checked.During this time the store manager was abrasive,arrogant and antagonist.Tell me how wrong and rude I am for questioning the store policy. What has happened to customers is king? I will NEVER return this store again!