Please ensure you done use my OLD Phone ?? for notifcation
Yahoo unable to check the phone used. I activated my old phone recently and now unable to sign in after clicking notification
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We unfortunately do not have the tools to help with account or sign-in issues. Very sorry! This area is only for bugs/suggestions in the product itself. We recommend contacting our Customer Care team at help.yahoo.com. Thanks!
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michael Aw commented
annoying as I have to ask for code by email