Hi @GA-guoang,
You can access this link for instructions.
Once you're there, please have a look at the section:
"If you think the ban, lock, or suspension on your EA Account was a mistake, you can appeal the decision.
To appeal, select the available method to contact us here, fill out the webform, and select Send.
If you submit a chargeback for a refund outside of our refund policy, we may take one of the following actions:
- lock your EA Account
- remove the content charged back.
Your case will be sent to our dedicated team for review. You can expect an email from noreply@ea.com about your case within 10 days, though sometimes it takes longer. The email will give you further details about our decision and how to dispute it if you think we’ve made a mistake."