Why is my visa application being asked for the same documents again?

The user is experiencing repeated requests from the visa authority for documents they have already submitted multiple times. They are unclear if this is a standard procedure to confirm the documents or if there is an issue with the submissions. Community responses suggest that resubmitting the requested documents is common and might be necessary to clarify any potential miscommunication. It is also advised to provide a cover letter explaining the situation and highlighting key parts of the documents.