Hi All,
I have successful enroll developer, just create a new account, here my email support
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Hello Bao,
My name is Daniela from Apple Developer Program Support and I want to thank you for contacting us regarding your iOS Developer Program enrollment. It will be my pleasure to assist you today.
First I would like to apologize for the inconvenience. We are aware that some developers are having an issue to continue their enrollment and our engineering team work to resolve that issue.
However, if you need to start developing in the next few days, you can also try to create a new Apple ID and submit a new enrollment. Please ensure that your are using a different domain and that your Apple ID includes valid information, name and address."