Spar Megacity disgusting manner of approach

I have had the worse experience at spar megacity, the manager there came screaming at shouting , would not even give me an opportunity to explain what had happened, I tried to contact the store so that I could talk to the manager for about 8 times and they kept saying they couldn't get ahold of him and i ended up calling customer care , such disgusting behavior if the actually incident up until them not putting the manager on the phone and my friend was so upset