The worst manager at woolworths rosebank

This woolworths manager was extremely rude and condescending. There was a special on the drink that I bought but the special was not picked up on the system. However, I saw another customer that had the same drink but they got it for free. The same drink. The same flavour and the same size drink. Wheni brought it up to the manager, she was so rude and imp**** that my comments or complaints were foolish and did nothing to solve my problem. She only wasted my time and was very rude about it as well.