Exceptionally Rude Customer Service

This evening (12/06/2015) my husband and my daughter went to Aneesa's in Klipfontein Road (Belgravia, Athlone) to purchase something for us to eat. Whilst waiting, my daughter went to the counter for an energade, while my husband sat on a chair close by. She asked for 1 only but the lady brought 2 and when my daughter (10 years old), said there was an error, this cashier said \Don't talk kak". my daughter turned to tell her dad and the lady called her back (obviously not realising that her dad was with her)....she continued to argue with my daughter and my daughter insisted that the lady was mistaken. The lady then told her that she would smack my child! I am utterly disgusted that a grown woman would speak to a child like that and it was observed by other customers and staff in the store. it is NEVER OK to think that this type of behaviour is \""fine\"" ...... completely disgusted"