+1 for paypal.. i know it's costs extra.. but if they sting you and you drop a complaint.. they hold the money.. makes them more inclined to send your parts/help you out cause it could be months before they see their money.. and with no proof of sending you'd get ur money back..
that said.. i can understand why he's not so inclined to help.. it's a brick wall trying to find a post parcel with aust post.. they useless.. try ringing aust post and asking if there is a package at ur nearest post office.. or ask them to check the DC (Distribution Centre) cause sometimes they are stuck there too.. and no sometimes they try delivering an item but don't leave a note.. cause they contractors and some are just lazy/stupid