trixie.tupaz Im sorry for the inconvenience, ive had the same experience with you last time, so i also did calling hotline for series of complains.. and found out that i have some open apps which not covers the free fb and viber, in short i have other data autoupdates, other internet access not within the free fb and viber promo,
may i ask what type of gadget you are using? your plan i supposed 499??
So sorry to know this. jerrifecatalan has a point. If you're using a smartphone, there's a high tendency that you were charged for running apps you may have in the background. Clicking links within Facebook will also incur charges. Check out Free Facebook | Data and Network | Help and Support to learn more about the promo.
For further assistance, I suggest you to raise this to our Twitter Specialists at http://www.twitter.com/talk2GLOBE or any of our support channels listed at http://www.globe.com.ph/contactus so they can help you isolate the issue, and if there's a need to make any necessary bill adjustments.
Also, please do let me know if you need my assistance. I would be happy to help.