Board Thread:Questions and Answers/@comment-35231183-20180406124724/@comment-33149505-20180407043939

Yeah if you look at it you can see ID in the middle of the Japanese writing. And the messages I get for unlinking crapbook say facebook in it or it's just a box with just this in it "!!" thats it. So yeah check your ID again man make sure your entering correctly or maybe you wrote your ID down  wrong. Thats all I can tell you. If you do want to try and contact them to recover you can go on the Dokkan Battle Reddit theres a section that will inform you how your supposed to do it, which is still super confusing.