Cash Crusaders Netwon Nightmare.

On Saturday the 2nd of March 2024, I went and purchased a TV box at cash crusaders now renamed Cash Exchange in Newtown Junction. I was asked to go to the buy shop and have it tested, when I got there the sales guy advised that their internet is not working so if i get home and the tv box is not working, I should return it. . . I paid for the Tv Box using my bank card which I swiped for and signed the machine reciept and kept the copy. I got home and the Tv Box was not working. Today I returned it and had explained that the only reciept I have was the one I got after swiping and my ID as I don't have the reciept they had supposedly given me on Saturday for the device itself. I asked for the footage which does show the footage where I'm paying for the item and taking it but not clear with the reciept. Howeved I did ask the guys there why can't they just refund me because my details are on their system.. From the very same sale. They also should keep a copy of a reciept in case of emergencies. But they tild me without my reciept they won't refund me, even after I asked them to show me on their written policy on refunds on the wall, they couldn't show me the policy..Which I believe could've been stated and made avail for all customers walking in the shop. I am now stuck with a device that is not working when I have paid R300 that I work so hard for. Can the law do something about thus because this is nlt an ethical way to work with customers. Cash Exchange is not an honest business and by the look of things, they will loose a lot of loyal customers because of the way they treat us. I have been buying their products for the longest of times and on this one time that I don't have a receipt to return a faulty product they sold to me.. They treat me this way? Should I take this further legally? Because I do have a lawyer on stand by to wait and hear what their customer service is gonna do about this. If nothing.. Than we will proceed legal action.