I just received 2 cards from Tassie today that were sent 2 weeks ago. So don't panic yet, but could be a good idea to ask the PO.
But hows this one. I had 2 cards sent from Steve (hsv006) who's PO is less than 15 km from my PO, and it took 7 days to get here, but I received a package from Bendigo in VIC in 6 days???? both arrived today!