Unprofessional cashiers

I’m really not happy with the way I was assisted at Checkers Saveways in Witbank. I wanted to withdraw money via money market. The cashier, Phylis Mathonsi just left me standing there saying she does not have R6500. I asked her to check with the other tills but they just made a joke out of it saying they can’t even assist others with R700 what more with R6000. I wasted my time standing for nothing saying she asked someone to check for me. Really?! How unprofessional is that? Helping other people in the queue while not done with my request. It’s really unfair.