Manager shouting at client

Me and my husband just had the worst experience ever at Mr Price Home in Middelburg Mall.

I wanted to make a purchase on my account. I had my card with me as we keep it in my husband's wallet. My purse with my drivers licence and ID was at home. The assistant told me that I needed to present proof of Identification which I did not have on me. The first guy who helped me was very kind. Then an extremely rude assistant named Elaine (Elpho) stepped in and immediately first raised her voice at me for not having my ID or drivers licence on me. I opened my Mrp statement on my phone to show her the nrs. She rudely said that she will help me once, then the store Assistant manager called Mphodi, who stood about 5m away shouted at me that she will not allow it, then shouted why dont I have my ID or licence! I calmy asked her why she are being so rude. She made me feel inferior and embarrassed infront of the other customers! When I asked Elaine to cancel my purchase and that I would rather go to another shop who respects their clients, she quickly finished the transaction so that it could not be cancelled. When I asked her why she didn't cancel it, Mphodi kept shouting at me. I asked their names and said that I am going to make a complaint on Hello Peter. I wanted to take a photo of her nametag because I was afraid to forget the names. Mphodi then shouted even more loudly"Don't let her take a picture, don't let her! Why do you want photos!" I calmy rep**** that Im going to post a complaint on Hello Peter, Mphodi then shouted, you dont even have to bother about Hello Peter, you can call customer complaints immediately!!!" She shouted so loudly that other workers came to look what happened and one of the ladies even apologized for Mphodi's behaviour towards me. I felt só embarrassed. I kept cool and calm the whole time while being shouted at by a store manager. This was unacceptable.