Nasty bad attitude and unpleasant service

I went to Pick n Pay Blue Hills to get some few things, on my way to pay a at the front counter there was only one customer making a payment so I rushed there quickly. The lady by the name of Lengana was the one who was working there, as I was rushing to go there she quickly saw me and moved from the counter pretending she's doing packing for other customers. I stood there waiting for her and she told me to go to the other counter, When I got to the other counter, the gentleman who was there told me to go back to the other counter. Now feeling like a fool I told him your service is not pleasant at all, as I was going back to the counter, the other casheir with attitude says , there is no one to assist you and there was a customer infront of me at the counter, I said then who is going to assist this customer infront of me, she said I don't know but I'm telling you no one is going to assist you, as Lengane was coming she tried to greet me during that incident, I told her I'm not in the mood to greet you after what happened, she gave me a nasty attitude told me she was assisting customers, I asked am I not a customer, she said I dont know. Pick n pay service is not pleasant at all or do they serve customer according to their status?