Account problem...

Greetings gm, when molten fell down my brother returned this acc but somehow he cannot remmber e-mail adress he used...now i'm having truble logging on warmane website to vote/donate :(.Is there any set of security questions about this acc or some email hint i could get just to figure out what e-mail adress he used? Ii there is way to fix it private message me soo i can send account info since this is my other account.

I do not get the problem, if the only problem is that your brother do not remember email who cares? to log-in you just need username + pssw. Maybe I missed something however these are the only ways to solve your problem:
https://www.warmane.com/account/retrieve
OR
send an e-mail to [email protected] if you lost access to your account