Woolworths charged me twice for my grocery shopping.....

I did my grocery shopping on Saturday the 6th of March. I paid using my debit card and got charged the correct amount of R1,973.02. Then yesterday, on the 9th of March Woolworths charged the exact same amount again from my debit card. I called my bank and they confirmed that this is a double charge. I called the Woolworths Customer Service and they promised that someone will call me back immediately. But nobody did. I also logged a complaint online but nothing is happening.... I love woolies, but this is a terrible customer experience. I need Woolworths to investigate and reverse the second charge.