Square Enix today announced that about 1000 Dragon Quest X accounts have been suspended because of the violation of the Terms of Use of the game. On the official notice page you can find the exactly numbers and the reasons and if you are in the group of the suspended accounts well, you can’t retrieve it.

The major problems are the RMT (Real Money Transfer which means trading in-game items for real money), auto hunting BOT usage. Square Enix also suspended accounts at the RMT part on both sides (seller, buyer). Here you can find the overview: http://hiroba.dqx.jp/sc/topics/detail/020c8bfac8de160d4c5543b96d1fdede/