I will never buy at checkers again!!! Arrogant, unfriendly, unhelpful!

Saw a special, took the special, went to pay for it, and it was just normal price. Upon asking why, the woman went to check and came back with the pamflet sarcasticly saying that it was purity noodles and not juice, when i pointed out that the special pamflet was placed by the juice and not the noodles, she said i didnt look properly, where i told her that i did, otherwise i wouldnt have taken it, where as she kept going on and on about how i didnt look properly en that i was lying, so much so that i asked het to just leave it and leave me alone. When i asked her for her nametag, she told me she wasnt wearing one, and when i asked her her name she just laughed at me and said Mpho. The whole time i was standing there she was going on and on, and when i asked her what sort of service this was talking to a client like that, she said it was the kind where she was right. What the hell???