Bad cashier service

I've visited checkers with my wife . I saw Nestle Tex chocolate and took one when I saw a price of r34 for two. I was not sure because the price was a bit obscured from where the Tex chocolate was. So I was not sure about the price. So at till 8 I asked the cashier to 1st check the.price for me. The look she gave me told me she's frustrated and then I insist. Without looking at me or say anything she just scanned it and not saying a word. I'm not sure if she woke up with the wrong foot out of bed but she certainly spoiled my shopping experience. I will think twice to visit that checkers at corkwood mall uitenhage again I'll rather spend petrol and go to baywest mall. The cashier needs to be send on a customer service training program