So you sent off your paperwork and somewhere you read, or somebody told you that you needed this bit of information. But DANG! You mailed the form already so what will happen to your form. You will receive in the mail what is called an RFE (request for evidence). Here is a link to a nicely laid out explanation for most RFE situations and what needs to be returned to satisfy the mistake. I'd like to thank Kat&Jon (members of Visa Journey) for compiling this list.