Funny, I've always viewed it as a card surcharge rather than a cash discount.
Re:In praise of cash
by nommm-nommm on Saturday March 04, 2017 @12:17PM
(#13791818)
Merchants don't always prefer cash. There's trade-offs to both. If merchants always preferred cash then there wouldn't be merchants who go cashless, and there are.
Merchants prefer cash as card costs them money.
Usually works with dry cleaners, cafes, etc. Big businesses generally say no.