Your International Shares Account will only allow you to deposit and withdraw Australian Dollars (AUD).
You may retain foreign currencies in your International Wallet if you hold an International Shares Plus Account, however, you will not be able to withdraw or deposit these foreign currencies.
If you require further assistance, please contact the International Trading Support on 13 15 19 or +61 2 8397 1206 if calling from overseas (open 24 hours, U.S. trading days).