Disgusting service and bad attitude

I was at shoprite kraaifontein and I must say the service was actually disgusting.I did not mind standing in the queue and I understand that it was month end and sassa and easter Sunday but if I am standing in the express queue for 10 items or less and a person with a full trolley is infront of me and I complain by the cashier and they just look at me like I am insane then I have a problem. When I get to the cashier and one of my items does not have a barcode she asks someone to get her a barcode but that person takes 30min and another person has to go and comes back to tell me that the price is not the same and still has no barcode and I asked the cashier Thobeka if the controller can't override the price I don't mind paying I just don't want to hold the queue up but the cashier gives me an attitude until I get on my phone to make a call and say I am going to lay a complaint then she calls the front end controller Bongiwe but mind you they still have a conversation in xhosa and says I am being a typical coloured until I told them just leave the juice so that I could go and spare them my typical coloured attitude but I will lay a complaint.I also work with clients and there for I understand the pressure but we must also give excellent service no matter where you work or who the client is do not judge a client by how they look. Shoprite does have low prices but that does not mean the service must be disgusting I am really disappointed and I don't think clients should be treated like that