Hi, OId email account is deactivated, no longer can recieve or send emails, or log into it. Created my ebay account 14 years ago, can still log in through google federated login, but cant update my email to current gmail, as only verification is through my old deactived email. Advice from the CS is to create a new ebay account, no other recourse. update your policy to allow other authentication methods. Have a nice day, Cheers,

EBAY Policy garbage around updating email address | Membership & Account

EBAY Policy garbage around updating email address | Membership & Account | eBay Australia