Hi, the same is happenin to me,
it happend before a few months ago too and someone on here that my dad spoke to told him to go on www.hotmail.co.jp and sign in and by doin that we could sign into messenger. iv tried it this time and its not workin but you could try it. it might work for you. let me who how it goes and if any 1 finds any thing else out about this plzzzzz tell me cuz its doin my head in!!

Amie x x x