Following a recent European vacation, I thought I would share what we encountered to make sure others are spared some potential disappointment in their travels. We planned a 3 day stop in Paris to visit Paris Disneyland. With the uncertainty of travel & weather, we planned to wait till we were there to buy park tickets for one of those days. When we got there & tried to buy tickets for the park, we found out that there was absolutely no local place where you could physically purchase a ticket, including at the parks. Online purchases were the only way to get a ticket. This came with the caveat that if you purchased an open access ticket, you apparently have to contact the park to get the day of use approved in advance. Our family cellular provider would not work outside North America, so we had purchased sim cards for Europe with a service provider based in France, and they worked well for the most part. That said, when we tried to use those Sim cards to buy tickets online, we were challenged by the Credit card company's multi-factor authentication process that required a response from our North American phones, which did not work in Europe. The new numbers included could not reach the credit card company North American based numbers. We then tried having family in North America purchase the tickets online for us, but they were met with "technical problems" from the Disney site. We tried for several days to find a way to buy tickets, and to contact the local Disney company to no avail. We even made calls from local numbers, & were not successful. An online inquiry to Disney was not answered till we had already run out of time, & we were leaving France. Granted, more research in advance might have saved my family substantial disappointment, but if you plan a trip that includes a visit to the parks, take heed. You may need to have your tickets purchased well in advance, and have the day of use specified so you don't run into similar disappointment. Cheers & happy travels!