I'm back, and i have problem. :F

Hi there, so after few years of break wanted to come back to old good wotlk. So when i came back i had this issue: i have 2 accounts -> and i am pretty sure i did something dumb before i stopped wotlking, propably i have changed email to one of mails from mine main email to some gibberish ( cant really remember why i might did that ). Mine question is how to recover my adress mail... cuz basiclly i cant vote nor donate cause of Auth. code. It says i have to enter my mail to check, but what if i have forgotten my (old) mail, or have changed it bcuz of some reason. Also maybe it is some of mine old emails but not sure which, had so many. Wanted to know how to recover my email, or if i can connect 2 warmane accounts with 1 adress mail -> that would be best i guess.
Thanks, KB

just noticed note at one of mine account that both accounts are linked? whatever that means.