There are currently two types of Xiaohongka cards, one is the Hong Kong dollar card (starting with 41463) and the other is the US dollar card (493728). If you are in Hong Kong, it is recommended to open a Hong Kong dollar card, which can save the loss of currency conversion. It is recommended to open a US dollar card in other regions. How to open a Hong Kong dollar card: Use a Hong Kong IP and fill in the Hong Kong billing address to issue a Hong Kong dollar card. How to open a US dollar card: Use a non Hong Kong IP address and fill in a non Hong Kong address to open a US dollar card. If you need a network proxy to switch IP addresses, you can refer to airport recommendations.