Hi, and thank you for asking your question.
Just to clarify, are you able to log in to your Yahoo account at www.yahoomail.com?
May I connect with you remotely to troubleshoot the issue now?
Please reply back to me below. Thank you.
Please reply back to me on this page itself - were you able to log in to your Yahoo account by going to www.yahoomail.com?
Keep me posted.