if you read email they sent when DQ, they mentioned you can keep uploading documents until appointment date, I keep uploading proof of employment evey 3 months, because interview letter take between 15~24 months in my case.!

You should be able to upload additional evidence just remember to take all additional evidence with you to the interview.

Once DQ, I would recommend holding all new evidence and take those to the interview. they will ask for all they need then. No one is going to review the new documents on your case after DQ unless they had asked for them.

okay Thank you everyone for the insight!

@Diana p The safest and most effective thing to do is wait to upload new taxes, proofs and police certificates, etc once you have received the interview notice. Not that you can't before you've gotten the interview email, because technically you can, but why take the chance of a glitch within NVC triggered by uploading documents on a perfectly good DQ'd case. You'll still have several weeks between the interview email and the interview itself, so you'll have time to do everything you'll need or want to do. And unfortunately @Me Le that is not 100% accurate. While NVC has no further reason to review them, what you uploaded prior to the interview date IS reviewed by the embassy at the interview and makes for a short and sweet convo with the officer.

@Anne S Thank you for your insight very helpful !