During the interview of American immigrants, the visa officer gave me a green form to supplement the materials and refused to accept my passport. Does that count?

Like the blue list, the green list is used to supplement the materials. Several documents of the American Embassy are red and approved. Blue and green ones need to be supplemented and wait for administrative review, or wait for a decision, or wait for the decision of the visa officer's superior supervisor. There is also a white document, which is a visa refusal.

Whether your visa is mailed or collected depends on your own choice at that time. If you choose to mail, you should fill in the post office list and pay the bill before the interview. If you don't pay the fee and fill in the form, you should go to the embassy where you signed it, and there is a designated cooperative post office, and then you can pick it up with valid evidence such as your ID card.