I have a prepaid mobile bought from Telstra Plus, so I called Telstra to get it unlocked.
After long waits on phone etc, the Telstra guy says it is already unlocked so doesn't need it.
The next day I had my doubts, so I called back, had long wait etc. Sure enough, it was locked. He doesn't know his job, so you can't rely on them.
Triple check by putting a non Telstra sim in
.