Unauthorized charges from Apple.com/bill and iTunes.com

Uyen,

First determine if it is a real charge on your account, or just a scam phishing message trying to scare you. (I can't read Vietnamese but it looks like just a text.) Phishing messages falsely claiming that you have a big charge from Apple are unfortunately very common.

But if it is a real charge on your account, follow the steps in here:

If you see 'apple.com/bill' on your billing statement - Apple Support

Uyen,

Follow the steps in the article that I linked. Look in your Apple Account (if you have one) to see whether the charge is there. If not, follow the section "If you can't find the charge in your purchase history."

This is a user forum, so we cannot access your account, but the link for Apple Support is there in the document if needed.