Too bad. When I eat at Burger King (every year or two) I pay cash. If he doesn’t like it, he should tell Burger King to issue their own credit card. I always pay $40-50 cash at my local gas / convenience store because it is not a chain and I don’t want them losing 2% when their gas margin is only a few percent. The main reason is they are 3 miles away and the next nearest is 7 miles.
At some gas stations' pumps I get the cash price when using a debit card.