Bad service and late order

On 16-01-2016 I placed an order of cupcakes at Cofimvaba Superspar and was told to collect on 17-01-2016 @ 4pm.I came as instructed and gave a receipt to a girl who was at the deli section who wasn't wearing a name tag.I stood there for good 15 mins waiting for feedback and when this girl came back she just passed m without updating me about my order and I decided to ask her ,she gave a hell of an attitude using hands when adressing me.The supervisor,Buli(with dreadlock and spectacles) came and instructed this girl to go and help people at the deli and left me standing there as well and went to the front where managers sit.I went to her and asked why would she instruct some to stop assisting me and not givecme any update about my order,she told me ahe wont explain anything to me if I am angry and I can do whatever I want to do about it.It turned out this order was still in the oven at the time of collection.Tge storw manager was not available and I asked for a person incharge(without a name tag) asked him to take my details as to get back to me after he escalates the matter to the manager after he refused to give me their names,up to now I haven't heard anything from them.