Nintendo Switch Microsoft login Error

My friend wanted to play Minecraft with me and I have never played it before so I bought the game on Nintendo Switch Eshop. It costs like $30 and it won't even log me in to my Microsoft Account. What is this? If anyone emails me about deleting save data for it to work, trust me I have already tried that and it DOES NOT WORK. Either fix this or give me back my money so I can actually buy a game that's worth it.