The National Visa Center (NVC) will not review a case until all documents, information, and fees pertaining to all required documents are submitted. These include but may not be limited to:
- Petitioner’s Affidavit of Support
- Supporting financial documents
- Applicant’s DS-260
- Applicant’s civil documents
If your I-140 has been processed and approved by USCIS and the NVC has not made progress on your case, this could be the reason.