Thanks to the person who commented about this trick on my post "BPI Express Credit Card Detailed Timeline: From Application to Delivery"
Whoever you are, your advice worked! :) I didn't have to threat the costumer service in order to reverse the annual membership fee! :)
The conversation went something like this:
Me: Hi! Is there anything I can do to cancel my annual membership fee?
CS: Hold on one moment, Ma'am. Let me see what I can do with that.
Few seconds later....
CS: Okay ma'am. I already waived your credit card annual fee for this year. You will be able to see the refund next month.
Note: I called on May 5th. I got the refund on May 8th.
Simple as that.
My advice: You shouldn't delay reversing your annual membership fee. Once you found out that you have been billed for that, you should call the costumer service right away. I think that's why my friend wasn't able to successfully ask for reversal because she was billed two months ago na.