Board Thread:Love Live! School Idol Festival Lounge/@comment-27114205-20151024152049

Cleaning app deleted my english love live data and I didn't get my serial code. I want to contact KLab but

a) I don't know how

b) I don't know my account ID. I know only:

-last login date (both day and month)

-account name, rank, members, I think I remember most of full combo songs too? I don't think I remember friends names though ;;

-device

-number of love gems

-last purcharse (none)

Can they possibly help me with this information but without my ID? How do I contact them? I was already rank 67 with 5 SR cards and I don't want to start game anew... 