well, go and get one then. Go down to the UPO or whatever your unit office is called, fil the chit out and in very short notice you'll have a shiny new card in the post
As with the question of leave. Im assured that the computer will only register your leave. If you don't take leave then it wont regiseter it. You are entitled to your 36 days plus and if you dont get them then no computer is going to stop you marching out of the gate. It will take a long time for this thing to settle down and I for one will enjoy some of my lads having lots of leave and all because the PC says they haven't had it yet.