Yahoo Friends

This a bit of a long shot but thought I'd try. A long time ago I created a yahoo email that I used to use a lot. There are online accounts that I signed up for with this email account, and atm there's one I really need access to but forgot the password to. Fortunately, I still remember the password for the Yahoo email, so I tried the reset password workflow. Unfortunately, when I log in to the Yahoo mail it says a confirmation code has been sent to my backup email that I no longer have access to :( and requires I enter it. I had never set up two factor auth so it's unfortunate it's being required to login to the account. Is there anyone at Yahoo that could help?