Unprofessional staff at Mr Price Senekal

The staff at Mr Price Senekal are the most unfriendly and even more unprofessional! Today I asked a question about returning something if its not the correct item and I got a very snotty reply from the 2 ladies behind the register. Saying i should not take the item! they then continued to talk about me in Sotho saying im stupid not knowing i understand the language. This is also not the fist time its happened.... I