Forgot Yahoo Mail password

Hello,

I tried for. Over 2 hrs to access my email acct . I have forgottenv my password and was trying to reset. The app kept asking for phonevdigits to a phone I no longer have that was listed on my acct.I eventually setup a totally new acct however I would like to combine the two accts. Emailbacct of ***@*** with phone number <removed by moderator> is no longer valid New email acct ***@*** with phone number <removed by moderator> is the neww valid acct