get a standard 30 optus sim card pack from coles(they don't have nano), called customer services and they said i can get it replace by a nano sim by visit any optus yes store but then hursvile yes store refused to change it for me.
any one have tried this b4?
Easiest way is to go into a store, ask them for a blank SIM in your required form factor, then call Optus and ask them to move your service onto the new SIM (they'll ask you to read out the number over the phone).
The people in the stores should be able to do it, but on the phone it will take about a 2 minute call.