MrPrice Sport Store in Sandton City review: Cashier service

Good day
I visited the MrPrice Sport store in Sandton City on the 23 January 2021.
While standing in the queue there was a lady in from of me and another behind me both of whom were white.
When the cashier assured the lady in front me I heard how she politely greeted her.
When it was my turn I greeted the cashier and she ignored me. I than greeted her again and she responded.
She completed the transaction and I walked away with my purchase.
The cashier than assisted the lady who was behind me and loudly greeted her and even went further to ask how as you.

My problem here is the mere fact that infer discriminated against because of the colour of my skin. The cashier could not treat me the same way she treated the other customers both of whom were the same race.

I think customer service standards should be the same no matter what race you are.