If its the same issue that Aaron mentioned before. They have the correct files, then they get over written with the older files. So even if they do check to see if the right cards printed to from the file images, they would be looking at the files that were sent to the printer. If the wrong one was sent to the printer and they check the output to the file, then the print would check fine.
What WGV needs to do, is Immediately halt all these cards from printing, Immediately halt all shipment of the printed cards. When they get the correct file AGAIN.. They need to print a master image and manually verify the reprinting of each order in the 3rd printing.