Real Canadian Superstore review: Cashier at self-checkout.

The incident occurred on March 12, 2019. The checkout time on my receipt is 14:43:18. I was in the process of scanning my first item (lean ground beef) when the self-checkout cashier came rushing over to me saying "no, no, no". There was a 30% discount on the meat and she proceeded to tell me how to enter the discount. I appreciated the help but I did not feel she should have approached me in the manner she did. I then resumed scanning other items but I noticed that she was watching me. It was when I was scanning six chocolate milk (.10 each) that she approached me a second time and looked at the screen. I asked her if there was a problem. She pretended that she was looking at the price of the milk. I told her that I knew she was watching me and it was then she mentioned that she didn't think I had scanned all the milk cartons. I showed her the six cartons in the shopping bag as well as counting out six cartons on the screen. She told me that she was just doing her job. She then told me in a smart mouth manner that perhaps she should not have shown me how to process the discount on the beef and therefore I would not have received the discount. I finished scanning, bagging and paid for my groceries. As I walked past her I told her that I was going to speak to the store manager. I had a friend with me and she witnessed the entire exchange.
I then went to customer service and asked to speak to the store manager. I spoke to Ken Bye and basically told him what I have just written here. I did mention to Ken that although the cashier was Indian that it was not a race issue. I have an Indian daughter-in-law and an Indo-Canadian granddaughter. I was so upset at being made to feel like a thief that I neglected to pay for two magazines. Fortunately I noticed them on the seat of the grocery cart and I immediately paid for them at customer service. I do the majority of my shopping at the Superstore in Mission. I have never encountered an employee as rude as the cashier I had the misfortune to interact with today. My email address is: [protected]@hotmail. ca
Please direct your reply to same. Thank you.