O.K. not delivering goods with rude sales person

I went to buy goods, which was well over the amount of R10 000. It was on a Wednesday, there Card machine was down and would only be fixed by Saturday, so I asked if i can do an EFT and it was all good. So 48 hours later, the money was not in their account yet and my bank said that the money was deducted from my account, they must please check their account this was at Friday. Saturday when I was promised my goods would be delivered, it was not. So I phoned the sales person who helped me and she was very rude and she said that we did not pay them yet, after we did send a proof of payment of the EFT. She also said that \It's not gonna happen". So in my conclusion"