Lost account, lost all the games on it, cannot log on MOJANG

Logged on MINECRAFT Launcher, but when I was in, ALL my versions of MINECRAFT that I bought where gone, only demo left. My gmail is the same, but everything else is gone now and my account name in MINECRAFT Launcher was meagekiller, but now somehow it turned into "Player". How to get the game back?

Also, could not log in on minecraft.net/login, the LOG IN button is grey all the time. I also had to create new MOJANG account.