Edgars incompetence

On Sunday 14 November we shopped at Edgars Clearwater. We bought some clothing. After the transaction went through my wife suspected the amount was not right. Some of the items were on black Friday special. While the cashier (Nosipho Lindelwa) rang up one specific item my wife saw her checking the price tag. Being on special there were two tags with different prices. The sale price was R199. the system rang up R329.95. The cashier let it go through after checking the price difference, on the R329.95. After my wife queried the amount the cashier denied the price difference. My wife showed the price of R199 on the item. She had a bad attitude towards my wife. A supervisor was called. She reversed the full R329.95 and wanted my wife to swipe for the item again. When my wife queried this the supervisor was rude to her. This was already 2 transactions. They expected me to swipe a third time for the incorrect item. All these transaction fees I have to pay for. My wife refused and we left without the sale item we wanted. This is exceptionally poor service.