Poor transaction management at Liughting Warehouse

I bought some items on 28 Oct 2021 from the branch near Princess Crossing and there was a connection problem with the first card machine. The machine did not show the status of the transaction, but my bank (Standard) sent a payment confirmation SMS to my phone. After a long waiting time at the till, I received a message that the transaction was reversed. Meanwhile they tried another CC machine. Same connection problem. But according to my bank the transaction also did go through, but it did not register on LW's machine, so obviously they did not want to give me the products. At home I consulted my online bank statement, as well as my banking manager. Both confirmed the amount was paid. The branch people were helpful, and did contact head office, who claimed that it is a banking problem - between Standard and Nedbank. Head office did not want to reverse the transaction. So now I am stuck - 6 calendar days later, no product, money paid. Weirdly, a few years ago the same thing happened at the Little Falls branch. It seems the problem is between Lighting Warehouse and Nedbank, which then become a problem for clients. LW should fire Nedbank if their system is so pathetic. Needless to say, I won't buy at LW again. PS - I must state that the people at the branch were very apologetic and helpful. But not so head office... to date they still have not rep**** to me on my online query.