Sour face lady

I am very disappointed in this store I have always supported them but after my last experience I will not be back. The Indian lady there does not respect other races I witnessed her calling someone a "low class white *****" she has does not understand that us as consumers pay her bills. She is always moody and rude to certain customers. I understand we all have our bad days but this was something that was very uncalled for. I have witnessed her speak harshly to elderly consumers and getting irritated due to then speaking in a low tone or them not being able to hear her. I feel as a face of a business this is very wrong.