Bad service

I’m not impressed by the service we get at sky city mall, I went there 3 time on different days to buy a chochip ****in, twice I’ve been told they don’t have it,so yesterday I went and asked cause it was not showing on that machine we order from,so was told that they don’t sell it cause people don’t buy it and why should they keep it for me alone,I asked why do they have it on display the cashier rolled her eyes with attitude and asked the manager to come talk to me because I had also bought food, the manager said nothing to me and when they both went to get the ****in could hear them laugh and talking about me that the other stuff came to have a look at me...the cashier buy the name vuyelwa had her name tag worn inside out which makes it clear that she treats customers bad,she continued with her attitude still rolling her us when she gave me the food....I’m really not happy with the service