Floor manager with poor attitude

We picked out 2 mens shirts from the display marked '2 for R500' (with multiple of same shirts in different sizes). At the till however we were informed that the shirts were incorrectly displayed. Instead of apologising for the misunderstanding, the floor manager then went on to blame us for not reading the label. This was done in a very sarcastic and rude way. It seemed we had inconvenienced her life greatly by pointing out the false advertising. When we then walked away she looked at us with great contempt. This has made us feel very angry and we will not soon return to Cotton On. We felt sorry for the lady managing the till as she was clearly embarrassed by her colleague's behavior.