Dear @Tan Tom,
Thank you for reaching out to the Microsoft Q&A forum. We’re happy to assist.
To better understand the issue, could you please clarify what happens when the address is rejected? For example, does the system display a specific error message or code?
If possible, please share a screenshot of the rejection message. This will help us review the details and provide more accurate guidance.
The address verification issue may sometimes be influenced by the IP address of the device you’re using. Please try switching to a different network or device to check if the problem persists.
In addition, if the problem persists after trying the suggested steps, we strongly recommend raising a support ticket through the Microsoft 365 Admin Center. This will allow the billing support team to investigate the issue directly and assist you with a resolution.
Here’s what your Office 365 Global Admin should do next:
- Submit a Service Request: The Global Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.
- Call Microsoft Support: For additional assistance, use this link to find the appropriate contact number: Global Customer Service phone numbers - Microsoft Support
- Contact a Reseller (if applicable): If your Office 365 subscriptions are managed through a federated partner or reseller and the Global Admin cannot open a service request, they should contact the reseller’s support provider. The reseller can assist with initiating the request and coordinating with the Office 365 support team.
These details will help us determine the best way to support you. Looking forward to your response so we can assist you further!