Hi Wilson Brown1,
I'm sorry to hear that you're having trouble activating your ESU licenses through Microsoft Phone activation. Have you tried using a different phone line or device to see if the issue persists? If the problem continues, I recommend contacting Microsoft support directly for further assistance. You can reach them by visiting Global Customer Service phone numbers - Microsoft Support and selecting the appropriate contact option for your region. Please note that they may require additional information from you to verify your account before providing support.
Kind regards,
Lei