Rude and Unprofessional Management behaviour

On the 13th of July we went to Tops Langa Spar in Flagstaff. We paid for the items we wanted. When we were leaving the security picked up that one item was cheaper than its normal price. He asked us to wait, he went to the manager, they fixed the bar code error, they came back and said “ Sorry you cannot have that item, it was a system error. We will refund your money”. The name of the manager was Siphokazi Mahlamva she was so rude and unprofessional. She instructed the security to pull the item from out of our hands and put it back in the shelves. She said yes it was their system error but still we won’t get the item.