Account Migration has not begun. There will be an in game message when it's your turn to move. Do not fall for any third party websites that are telling you to migrate NOW. They're trying to steal your information.

I already had the Minecraft Java edition and recently bought the other version for $29.99. I was charged for it and never even received the game or was able to download it?? I checked again today and I still need to buy it, it does not show that I have the game. Not refunded yet.