Rude cashiers

Was at Pep home (Uitenhage binnehof) buying 1 item. Was standing in the line and was the next person to go to the till. There was two or three ladies standing at the till making there purchase, the cashiers were having a long conversation with this ladies. Seemed that they know this ladies. When they were finally done with their chatting they helped 2 other people that came from the side of the counter. I simply asked why they helping others before me, because I was standing long in the que. I was rudely answered by 1 of the cashiers. I feld so embarrassed as there were other people also hearing. I just kept quiet and left. Will never set my foot in that store again.