Thread:Khizer1/@comment-24332696-20170103210919/@comment-24332696-20170103214717

If you did none of these 2, follow "Guide to recover your lost account".

He linked you to the page on the Dokkan Battle wiki page. If you linked it to your Facebook account (like I did), it shouldn't have a problem. As a last resort, you can contact them via the app and explain the situation.