Its all done in tunis, if you drop it off at the vfs they will do quality control and courier to the embassy, but you may as well just take it to the embassy. the security officers will take your package and you will likely get the visa/copr the same day. they only offer this service on some days mind you. if I recall correct its only 9-10am on Mondays and Wednesdays. the ppr will say what days to do it.Where did your wife get the visa in Paris or Tunisia.