You can get your load here either your GLOBE,SMART,SUN cellular,PLDT

I am a globe user, but one thing that annoys me is they are only good for 6 months in roaming and u should have a load at least 100 pesos in a day or else it will deactivate.(as what happened to me last month). I load them 200 pesos and its valid for 60days rather than 100 as its only good for 15days.

So i think i will try smart simcard next time, as you only have to activate your roaming once and just top up.