I have no access to the recovery number nor do i have access to the recovery email, but...
GetHuman678878's customer service issue with Yahoo from May 2018
Help with my Yahoo issue
Before contacting them, items GetHuman678878 may need:
Email on Account, Username, Password, and Name of Account Holder
GetHuman678878's next move: go to the Yahoo help center.
Yahoo doesn't have a customer phone number that is answered by an agent. Instead, GetHuman678878 will want to follow the link below to head to their help center. We will check on GetHuman678878 later to make sure it's all set or try to help escalate.