Made us pay twice by closing the gate, and treating us like ********s while is have the proof that the same payment went through 10 minutes appart

When we arrived, there was waiters sitting at the door looking at us as if we don't belong there on our way to seat ourselfs at the smoking area a lady came to assist us, she left the dirty ashtray on the table and said she would send someone to assist. 10 minutes later, I walked out the smoking area door to find 5 waiters and waitresses chatting. When I asked if someone was going to assist us, someone came to us. and then they forced us to make 2 payments, treating us like ********s and closing the gate as if we did not want to make the payment. When Tebogo took the card machine, after I tapped our card and entered the pin the machine went off; apparently, it was flat (why was it flat in the first place?). The payment notification came through on my husband's phone immediately, I showed Tebogo and we still waited but the machine took long to come back on the other lady said it's fine we can go as she saw the payment notification and they did not want to waste our time, as soon as we got to the gate it was closed and then Tebogo came to us saying that the payment was declined. I asked if we should come back inside and she said yes, she called her manager and the manager was chewing something and looked at me as if I was some ********. She saw that I was calm and asked me if they could do the payment again. I agreed as she said that if it did go through twice she will do a refund for us in the morning. Well it definitely went off our account twice, I emailed the proof this morning, and I still had no reply where did our money go is this now the new way of steeling from customers to force then to do double payments and then ignore then as if nothing happened because they needed the money? Really we thought this was a nice Spur but I will never ever go to ANY spur ever again and I want my money back.