Bad Service

I went to a nedbank branch in kagiso just for an I'd copy to be certified and scanned to one of their department which asked for it. The teller that was assisting me asked her collegue to do it and told me to sit and wait for her, which I did. I sat in the branch for about 10min and this person wasn't getting back to me, so I stood up went to ask what was taking time, she gave me an attitude and told me the colleague is probably still busy, instead of getting of her chair to find out what the hold up was, I went back to sit for a few more minutes and realised she wasn't bothered with a client sitting and waiting on her I stood up and left. I don't understand why she's in the service environment if she's too lazyto service the people who are paying her salery and making it possible for her to have a job.