The cashier was very rude to my wife

The cashier was very rude to my wife.she arrived crying...I saw a jean for R270 at sportscene in phokeng mall n when I went to pay the jean was R70 more...I told them I don't have money n left.as I was walking out the cashier shouted for me saying I shud come back n sign.i was soo angry bcos I was in a que for 45min n I continued walking but the cashier shouted at me saying yeah leave u think u are all that.i walked back to her n asked if shes talking to me in tht manner then she laughed at me.i asked for a manager n they refused to call the manager.i walked out again n the cashier shouted again at me saying she doesn't care even if I get angry.i cried because I don't know this lady for her to treat me like that...