Anti-generics lady thinks she gets it for $5.90

I knew this lady was anti-generics but I still asked her.

Script was Keflex Syrup 250mg. Her health care card was not working. I told her the price before I dispensed it. She casually said ok.

After I dispense it, and came to swipe her card, (It was like $22), she says: "I always used to pay $5.90 for this."

Me thinks why is she telling me this. You accepted the price of $22 because you think you're all so good and that you don't take generics, and now you whinge about the price.

You know what I said:
Well that's the concession price and for the generic.
a) you don't have a valid health care card
b) you didn't want generics
So $5.90 does not apply to you.

She: Well I don't know. That's the price that I used to pay.

Me: You're probably thinking of something else. Anyway, please key in your pin number and press enter .... thanks.