You have been given specific info from the interviewing officer. This would have been recorded in the interview record. You do not resubmit anything , you do not apply again .. . you provide additional documentation for the current application, as advised , that is considered sufficient by the person assessing her application .. other things such as you have mentioned are not going to do it The sooner you comply , the sooner her visa can be approved. You must either already be in the US when she enters on her visa, or travel and enter together