Oops.. got a call from a Sydney number.. was a guy with a thick Indian accent and the call quality was terrible so all I could make out was "Amazon", so I figured scam call. Then just as I was hanging up I heard a car beep twice through the phone which I also heard outside down on the street at the same time. I'd hung up on the Amazon delivery driver! My buildings' concierge must have been not at his desk so he tried calling me. All sorted now though, I have my 3 x AU to US power adaptors and my new computer chair cushion safe and sound.