Rude disrespectful cashier

I went to clicks Oudtshoorn on Sunday to purchase a few items i saw the a rascal basket was on sale. I went to the till to pay and saw tgat the rascal basket is no 39 rand instead of 34. I approach the cashier to tell ask her why is there now a differnence in price she rudly said "idont know " and she went to call the manager on her way she mubbled "ongeskikite mense die" thinking i didnt hear. That was so damn rude and disrespectfull. If u dont knw hw to speak to people then be quiet... jade schippers!!!