Cảm ơn nhiều, nhưng tôi không biết TA nên đành chịu về vấn đề này. Tôi có vào trang web ceac.state.gov bấm vào thì hiển thị nội dung như sau:
Immigrant Visa
Summary Information
To process your case, you must first pay any required fees. Then, each applicant accompanying the principal applicant to the United States will need to complete the online IV Application (form DS-260). The IV Application may be partially completed and finished later, or may be completed at one time. However, once submitted, please contact the NVC if you need to update the form.
After submitting the DS-260, mail all supporting documentation (as listed on the
Documents The Applicant Must Submitweb page) for each applicant to the NVC.
Once received, it will take the NVC 30 days to review your case. If any additional information is required after the revie
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