Cashier not greeting

On the 30th Dec 2017 I visited Mr Price The Glen. The cashier by the name of Precious (PRGUM) as reflected on the till slip did not bother to greet me and served me with a long face throughout the transaction. I just excused her behavior and thought maybe she's having a bad morning and didn't make much of it. She even put the till slip on the counter without asking me to sign. It was after she concluded my transaction without thanking me that I got the shock of my life. The next customer was called while I was collecting my goods and she opened her mouth and smiled widely to the client. She greeted her with a loud "Good morning, How are you?". I just froze in shock in shock and went back to her and asked if it's her name on the till slip. I don't want to pull a race card but her behavior made me feel like she segregated me.

Please send her for further client service training if there's a need and tell her to treat her customers as equals. If she's not in a greeting mood she should not greet all.