Angry customer

I was at Ackermans Soshanguve crossing on the 26 / 27 march and I was assisted by a chaier named Dimakatso . She was so rude and have no respect for customer . I asked her nicely to be at least a little bit fast as I was on lunch and her response really shocked me in her own words she said " can't you see I am fast ? Unless in want to jump in this side and ring this clothes for yourself " . I told her I'm in retail myself and that's not how you should speak to customers and that I'm gonna report her she then said in her own words " do what you want to do I don't care " . So I feel that I'm gonna payoff my account and close it I won't allow to be treated like this while I pay my account on time it seems like Ackermans does not need my money anymore hence they can't teach their employees customer service .