Supermarket has great choice but some of the staff...

Supermarket has great choice but some of the staff totally know how to ruin your experience, being totally unfriendly, didn't have my card with me and another employee was very friendly and swiped it for me.
The next day another employee didn't want to get the card and was reluctant to get it (she was Latina and her name was something like Lissa or so).
Black employees very friendly and curteous, latinos very unfriendly and aggressive tone! You should check your staff!