Bad customer service

I am very angry and Disappointed and how Pick n pay Sam Ntuli mall treated my sisters and I, it was our first time shopping at that mall and we were treated with outmost disrespect, we stood on a queue for morethan 30min only to be told that it is an express queue, when we explained that there is no signs or anyone who is assisting to direct the queues as the said sign is only visible when you are closer to the till, they one of the stuff member asked us if we have never seen an express till before or have an understanding of the term express we took offense as we are learned individual and asked her to call the manager but she also refused to assist and instructed us to go and start a very long queue when we voiced out concern on the time spent on the till she raised her voice embarrassing us in front of other customers and when we asked for her name so that we can escalate she shoved the badge on our face and said we take it up if we want, we had to drive from Sam Ntuli to Brackenhurst pick n pay to do our shopping wasting fuel and time