ASK ur 親人, go to ANZ , COMMONWEALTH bank , national australia bank or BANK of china sydney (these 4 banks has relationship with bank of china (HK), faster to receive the money). Then tell the teller 滙澳元 to hong kong, Give the details e.g hong kong account holder name, account number and swift code (BKCHHKHHXXX). Teller will know how to remit the money to hk.