There are many ways Globe or other telcos treat their customers. Published offers are what everyone sees but there are offers which depending on customer parameters could be taken advantaged of. There are also offers which are limited in time and the best way to find out about these things is to befriend Globe employees and even Globe Community members.
I know for one that many of the Globe community members receive perks, get invited to events and even have special offers that other subscribers don't usually get.
That's already a tip for you.