Hi, @theone26424 ! 
Have you tried configuring this via Shopify’s local delivery settings? You can follow this help article step by step: https://help.zapestore.com/en/articles/4965709-setting-up-local-pick-up-and-local-delivery
Here’s a list of local zip codes for your reference: https://en.wikipedia.org/wiki/List_of_ZIP_codes_in_the_Philippines
Since you’re looking into local delivery, you might find integration with GrabExpress or MrSpeedy helpful. We have an app that you can add that allows you to book on-demand couriers with just a tap of a button. See it here: https://apps.shopify.com/restaurant-alerts-delivery
If you need any furhter assistance, feel free to contact me at kim@zap.com.ph