Board Thread:Questions and Answers/@comment-32938655-20170824145615/@comment-27828202-20170827232705

Worst case scenario you have to re-install. But you can send a ticket to support on fate-go.us (find the button "Contact us" all the way at the buttom of the screen) for account recovery. They'll send you a list that you need to fill in as much as possible and then you could get your account back.