I live in the US and will be traveling to Austria and Hungary this summer. I was planning to purchase multiple OBB train tickets for travel between Budapest, Vienna, Salzburg and Bratislava, but when I tried to purchase tickets on the OBB site, it could not process my credit card or ApplePay. In researching the problem, seems like US credit card payments aren't accepted by the OBB online system.
PayPal is a payment option, but I read there are also frequent problems with that method, too. The chatbot on the Austria tourism website suggests booking tickets on RailEurope, Trainline or Omio. I wanted to book direct from OBB for best prices and to be able to change reservations in country using the OBB app.
Has anyone in the US found any workaround to be able to purchase tickets directly from OBB? If not, any intel on RailEurope, Trainline or Omio, the process for choosing reserved seats on those platforms and in-country flexibility to change reservations through an app?
Thanks in advance for your help.