They used to use Wavecrest before the entire rework of their card system and before the news about Wavecrest restricting a bunch of countries came out. Ever since they have promised to make deals with other providers but I know nothing about how that turned out. I assume that Wavecrest is still to be used for customers in the European Union, albeit some people here have said that they have yet to hear anything from UQUID even inside the EU. Honestly, you should probably look elsewhere at the moment if you are looking for a card.