Ci-en was mostly the same as the Jp dlsite account.
So that amount to you saying you screwed the merging of english and japanese dlsite account.
Normally DL site tried to avoid that.
You should try to contact them (finding the right place may be hard).
But before that, check your email (junk bin maybe) for dlsite account.
If both EN and JP had the same name, their renamed one before the merging and at the end, only one name survive the merging.
So if you had like "myname" on maniax and "myname" on english, they likely have renamed one with a "_jp" or "_en" at the end of the name. So your final user name has probably changed in all that.
Should have been explained in a mail.
I had that, and took care or renaming both account so that I end up having the merged account with the name I wanted when the fusion occured and the final (I think JP) account name won over the other.
