i think they're using the free card that came with the phone. 2 ppl already asked me about this, sigh. i don't know if the adapter came with phone or not lah, i'm still using old phone without all these fancy features.
thx for offer, but it's not a one off use thing, so will have to find a way to buy one.
anyone know where? (ok lah i suppose i can just go to sim lim and ask around)