Poor customer service - agent rude

I called City Power contact centre to have my electricity meter read as i am being billed on an estimated reading. Upon speaking to Brian Mzizi at the call centre and explaining my issue to him, he had the audacity to laugh at my query. Is this customer service we get from City Power representatives? He also chose to remain quite on the call every time I mentioned something to him, no acknowledgement to what I told him. His telephone etiquette sucks.