black Friday hidden items

I had the worst ever experience at the Chatsworth Pick n Pay. It was black Friday and we went to purchase the specials, there was no milk which is understandable. but when we went to use the change rooms, the rooms was full of milk and other specials. the lady at the change room said these are the staff things they will pay for them when they closed up. we are paying customer who used our petrol to come purchase these items. Those items hidden away was not paid for. So i wrote their customer care and was told that they will see into it. A lady from the Chatsworth branch called and my daughter answered as i was in hospital and she was told that we could go in at anytime to get the specials but daughter did not take her name down, coz i was was in and out of hospital i couldn't go in December or in January, I then sent another email to ask if it was okay for us to go now and I was advised that we would and was given a refence number. When we went the Chatsworth branch we spoke the the manager Niren who questioned us about what we saw in the change rooms and was told he knew nothing about the email. after me showing him the communication between customer care and myself he smirks' and raises his voice and looks away with no interest at and kept repeating himself he cant do anything. Today i wrote another email and was contacted by Sharon from Chatsworth only to tell me that the staff also have the right to buy. then why was i told to go in at take the staff only to be embarrassed again. so we as customers have no rights!!!!!!!!