Update - Spoke with a supervisor today who was helpful and they have agreed that they need to launch an investigation. That is the good news, the bad news is 3 more parcels are missing from my lodging last week. All 3 lodged together and all 3 no movement at all. 

The AP Supervisor did say that I won't get to hear of any disciplinary action on their findings due to privacy which is fair enough. But I am really over this now. This is starting to feel very 'targeted' now. Hopefully AP can identify the culprit/s.