she said i am MAD

Iwent to shoprite golden walk to buy cinnamon, i went to Refiloe's till point to pay. I gave her the cinnamon to scan,she took it threw it behind her, i looked at her as she was busy. I gave her my card, she put it in the pinpad, didnt even ask me if it's a cheque or savings. She swerved the pinpad like she was fighting.i put my pin no when i am done i swerved it back at her she threw a pen and a slip at me, i did the same threw the pen and the slip back at her and she said I am MAD. After not greeting me and giving me such service. I went back to her and ask if i am really mad and she said yes. I turned the name tag yo see her name and i told her i am gonna teach her a lesson she said\I DO NOT CARE GO AHEAD".Shoprite must get rid of her she's got a bad attitude. I reported her to the manager and she was called in the office and she went on and on performing like she was on stage. I wanted to take her a video so she can be exposed but i couldn't. """