Bad service at Vodacom - Clearwater

I bought a Samsung Super fast wireless charger from Clearwater mall on the 28th Dec 2023. I went back today 2 Jan 2024 to request for a refund as I was not happy with the wireless charger, it does not work with a cover and that was not conveyed to me when I bought it. I went to clearwater - Vodacom to request a refund, and they denied the request for a refund. They manager was adamant that I was not able to get a refund and as we agreed on a exchange. As she was about to do the exchange , I mutter something under my breath and she told the guy to give me my product and I must take it up with the consumer act and not do the exchange but kept my product in her hands. I asked her to give me my product as this is theft. She told me she was not going to give me my product. I told her she was *****ing from me. After a bunch of screaming she finally gave my product back but no refund or exchange was given I was not allowed to get an refund for the product or even an exchange now. I did have a customer service person from Vodacom phone me and said they would escalate this issue and yet I have not received anymore update since and the logged case has been closed with no resolution