I am a contractor with auspost and my contract states that I must abide by their rules and regulations, which I try to do. Under the terms and conditions of use of Auspost services, it states that Austpost will not deliver to anyone who does not have a specific min size post box and that it must be placed at a particular point depending on the delivery circumstance. My Auspost manager states that these terms and conditions are only guidelines and he will decide if the boxes are ok to deliver to. Is written terms and conditions to be adhered to over verbal directions from my manager? My understanding is that written regulations take precedence over verbal directions.