problem updating u.s. debit card from philippines...

[elfforce1]

I'm currently in the Philippines for college and visit my family in Texas during the summer if I'm not taking summer classes. During this last vacation in Texas, I got a debit card from my bank and since then I have bought some games over the internet from the philippines with it, so I know it works. Anyways my problem is I seem to have a problem updating my account billing information from an old prepaid card to my new debit card. Is this from an international issue with my card being from the u.s. and I'm in the philippines or is it the same problem everyone else is having?