I ordered a Macbook Air off of the Apple website on August 3rd. It said it shipped on the 6th from China, and is currently in Hong Kong, but after two, almost three days, it still says, "The package is at the clearing agency awaiting final release." The expected delivery date is August 12 according to UPS but August 13 according to Apple. How long does it usually take for it to clear customs and why has it been there for so long?