I did saw GameXplain mentions some bad news for some players who purchases stuff from an official Nintendo of Japan Twitter account that has been announced that both ending Credit Card Purchases and Payment Methods for the Wii U and Nintendo 3DS eShop around in 2022 in Japan. If you're still using Credit Card purchases that not using those Prepaid Cards that you might want to purchase the necessary stuff like games and DLCs. I am still planning on buying the rest of the DLC content in my Wii U console along with getting the other Nintendo 3DS downloadable only titles and other DSiWare games in my Nintendo 3DS system.