Worst customer care experience

Had the worst customer care experience at Studio88 in Baywest Mall yesterday. There were 5 staff members just standing around looking like it is a big effort in helping me as a customer. I gave them the tekkie I wanted and they could not find the other shoe for more than half an hour. Later when I went to the till to pay for my second choice of tekkie I saw the other shoe of the tekkie I did want. Eventually a lady came to the till to put the transaction through, with this she said that the tekkie is one price, but on the red tag on the tekkie it was less, when I questioned this they said that is what it rings up to and that is what I must pay. I said, but if an item is marked as one price it must be given to the customer at that price, and the lady rudely said that is the price and that is that. When I asked to speak to the manager she pointed to a guy which was just randomly standing in the front of the shop. When I asked if he is the manger he said no, he is the acting manager, I then asked him why must I pay the price it was ringed up with, he said it was a casual that worked there's fault and not his and that is the price. The unhelpfulness and lack of customer service, unfriendliness and lack of interest showed by these staff members were shocking and appalling.