Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Sandking799,
Thanks for your post with above information. From your description, I understand that you have some problem to register Microsoft 365 Developer Program, it is recommended that you may switch to a different network environment (for example, connect via VPN) and try again to check the result.
If you need further assistance, as we are Office 365 business support team, register Microsoft 365 Developer program related question has out of our support boundary. To help you further and more efficiently, we recommend you can post a new thread the Stack Overflow forum. The engineers there have more experience and resources to handle related questions, believe they will continue to provide further target assistance to you.
Thanks for your kindly understanding and cooperation.
Best regards,
Jennifer