Your primary employer can request you a new card through the Rail Industry Worker System. The employer can login, search for the workers record, cancel the previous card/provide reason and request a replacement card. Replacement cards cost $85 + GST.
The previous RIW card will be de-activated as part of the replacement process. If you find your card after you have submitted a request for replacement, please discard it as it will be deactivated upon the cancellation.