Pathetic , service from Cambridge Randburg

I had the most disrespect from a cashier at this Randburg shop today at about 6.30pm, named Olga Sesheka all because I refused to step back and let her assist other customers who have been in the que just as I was! She had a nerve to tell me as a customer that she does not want to serve me, made me stand by like a fool while she attended to other things. To top it all, no one at that place has a name tag and when I asked her for her name she said to me'I am nameless!! Really???? Fortunately I kept the receipt and that's where I got her name from. Even had a nerve to tell me to beg her to assist me, like excuse me, who is the customer here, whose money am I spending at this shop????