Board Thread:Love Live! School Idol Festival Lounge/@comment-28190715-20160412051604

So i have done some.. Pretty horrible thing to my device, which i dun want to mention again, and after that, i cannot access School I dol Festival App anymore. A few montha later, i buy a new device, but i don't remember my ID or transfer code, but i recorded all other informations in the "retrieving account format (?)", Klab has already reply to my email and they said i need to provide my ID for them if i want my account back. What should i do now :( ? 