Got logged out of my account a while ago and trying to get back in!!

Hi, so for some context I have a older brother that used to love to play video games and gave me his old account for Origin which is now EA because it shut down. About a year and a half ago I got logged out of the account so some reason and now I can't get back into the account because I need an account varication code in the email inbox, but the big issue is I can't because either me or him can or get access to the email inbox because of how old the email is. I know this more of account being old but just wondering if anyone may have a tip or can help fix the problem!