l use an American Express card exclusively. Many restaurants , more recently, are not accepting Amex, but accept Visa and MC. Yes it cost about one percent more to take Amex, but l am on the out. l understand having the other cards as l do, just use them, but that is not the point. l do not want to use the others. When the restaurant tells me, sorry they do not accept Amex, l pay in cash, and tell them sorry, l cannot return, yes a lie, but l try to get them to change their policy. Any other suggestions.