Post offices in the Philippines are either a hit or miss. You either love them or you hate them. Not all post office here are the same, especially when it comes to the customs policy for incoming packages from around the world.
Local parcels aren’t a problem. You’ll receive with no inconveniences. Letter type of mails are delivered properly to the addressee. On the other hand, when it’s letter mail or a parcel (regardless of its size) that came from anywhere outside the country, it will be held for customs inspection and you have to personally go there to (as I like to call it) bail out your package.