Help me！Can anyone tell me how to unseal my account?

Hey, @xiaohen5  when it comes to banned account, it's not something we can help with on the forums, and to dispute your ban, please follow our EA Help link: https://help.ea.com/en/help/account/information-about-banned-or-suspended-accounts/

The article will have details on how you can dispute the ban.

If you already reached out and now waiting, keep waiting is all I can recommend.

/Atic