I would like to second this concern as I am also affected by the same issue.
I received an sms update from Globe which notified me of my current data usage.
It says that I used up 41.1g of data within a period of 8 days, starting November 1, 2016!
That was a shock to me since I merely use it to browse API docs and watch 240p youtube videos.
I am very thrifty when it comes to data usage that I sacrifice the quality of the videos I watch.
Now, my router has a meter like any other router. It only shows 15.84gig of data usage!
This router is provided by Globe and the software in it too!
I am baffled of the discrepancy! 41.1gig and 15.84gig!? Come on!