Dollar General review: Customer service employee - Yolanda

I went to the Dollar Store located at 958 E Rodeo Road in Casa Grande, AZ and was terribly disrespected by your employee Yolanda. I asked her if she could hold a moment while I got a box for my glue gun. There was nobody at the register just me. She didn't offer to help me find a box and rang my purchase. I didn't want to do that just leave everything and check for a box. I told her that I have been helped before and she said she couldn't. I told her I have never been treated like that and she told me that I was annoying and didn't know how to keep my mouth shut.
I am furious and horribly disappointed that this happened because all other employees have been nothing but nice to me.
This is the worse case of lack of customer service, and of decency, I have seen in my life.
She didn't greet me when I got to the store and I found that odd. I disregarded it. That made me think because I am greeted every time I go to that store.
I am at a loss to how this woman made it to customer service.
I am hurt and dismayed.