Australia Post

This is the rudest post office I have ever been to. Had an appt to renew my passport showed up 20 mins early and got told to go away. Came back and the same staff that told me to come back started processing my paperwork was really rude and unhelpful to the point that staff wouldn't even let me borrow black pen that I needed to sign my form. Staff wanted me to go away have my signature witnessed and then make another appointment When in fact I could just get another customer to witness my signature. The funny thing is when I was early there were 3 people serving and a que of customers. When I returned same scenario so not sure why I had to go away for 20 minutes when they had exactly the same staff and same que of customers nothing had changed.