@ykcul_kcul , depende sa courier services. may iba kasi di nagsesend sa PO box address. Kung Fedex/DHL ka, street address the better kasi at least may pirma ng recepient once delivered at makikita sa tracking.
Kung Philpost naman PO box, sa tracking malalaman mo lang na sent at delivered.
Then again, either naman pwede.
May difference lang sa cost at how fast madeliver.