If your treated badly there's no way your going to serve customers happy

I went there to buy 2 streetwise 1 mix and the girl did streetwise 1 and I advised her that I want the mix, immediately she was like yoh yoh I've been voiding and I looked at her like and than she called the woman and stood the woman didn't come than I ask her what's happening she's like I called her then the woman can see that we have an argument she cane to void but stating that she doesn't void for other people it's just this girl, shame girl was ****ed but now she had an attitude towards me because the manager if she is had an attitude towards her.. drama that's so unnecessary