Is it possible to pay for the bus at Skopje airport with euros or a credit card?

Some friends and I are visiting Skopje next week. We want to take the bus from the airport to the city centre. I've read many times that you can pay nearly everywhere in Macedonia with euros. Is this also true for bus rides in general, but especially for the ride from the airport to the city?

Has someone some experience to share when it comes to paying with credit cards in Macedonia? How is the general acceptance in restaurants and stores?