Current product hierarchy ID Cards I had a new ID card issued and have subsequently I found my old ID card, can I use the old card? Published 13/12/2017 08:40 AM | Updated 18/12/2017 02:41 PM No. Your new card has new encoding and reference numbers. Please destroy your old card. Email this page Recipient Email * Your Email * Your Name * Print Share Facebook Twitter LinkedIn Reddit Is this answer helpful? Yes No Other related questions How do I get a student ID card? What is the criteria for a UniSA student ID card photo? What do I do if I've lost my card or need a replacement? What do I do if my card will not work in the library? How is a grade point average (GPA) calculated?