Being a tourist, we made it clear while buying the sim that we need it for 3 countries, Hungary, Austria and Germany to which the sales agents at a very big store in Budapest told us that the sim will work in all the aforementioned countries. The sim worked smoothly in Budapest, however when we visited Austria it suddenly stopped working and the customer service weren’t able to help us out. Only solution they offered us was that to visit store in Hungary which was impossible as they were not having any physical store in Austria or Germany. This means that they deceived us at the time we purchased their sim. I will not recommend anyone to buy yettel.