Just like your regular bank cards, for security reasons Currency Cards need to be activated once you've received it. To do this, follow the below prompts...
Call Mastercrd on 1800 098 231 or on +61 (2) 8974 0856 from outside of Australia
Press 1 to hear the card services line in English
Press 4 for Card activation or PIN Assistance
Follow the prompts and enter your card details
Your card is now active, continue to listen and follow the call options to hear your new PIN number