From the looks of the box, i guess it went to the post office. There were stamps indicated on the day it arrived in the philippines.
FYI: amount was indicated in the box, but as a disclaimer this is only a single item worth less about P 900 pesos.
Another experience: I also availed the fast/priority shipping (2-4 days shippting) option for amazon.co.uk, this was delivered to my doorstep (UPS) and I did not pay any custom tax for this. Total price for this is about P 4,000.