Boston College folk; no power in the apartment

A group of Boston College MBA candidates are traveling around Asia currently. They have been in Tokyo, Seoul, Beijing, and are wrapping up a visit currenlty in Hong Kong. On Monday night a group of the full time BiMBA (Beijing International MBA) students that I have classes with hosted the group of 30 or so BC students to a dinner. Patrick (his chosen anglo name) who is the class president of the BiMBA program invited me to attend, which was nice of him. I showed up more to get to know some of my native Chinese classmates a bit better, rather than indulge in the free buffet, but that was a nice perk too. I also figured I could be a good liaison for the BC students and some of my classmates and vice versa.

The BC students were a nice group. There was a Villanova alum included, she was a frosh when I was a senior, so we had never met, but it's always nice to connect w/ a fellow Wildcat. We exchanged some contact info, they told me about their visits to Korea and Tokyo, as well as their corporate visits such as to Microsoft China, Lenovo, and some other companies which I now forget.
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The power just went out in our apartment. I just received the untimely news via a phone call from the roomie. We were hoping that it would last until the end of July, but I guess not. When we rented the place, the rental agent gave us the what looks like a credit card with a little microchip in it. She said we should take it to the local power office and put money on it so that we didn't run out of power. Of course, we opted to roll the dice and see how long our wattage/voltage lasted... Turns out, about 1.5 weeks. So now I have to go to that office, try and communicate w/ whomever is there, put some money on the card, and after that I have no idea what to do with it. Is there some secret slot in my apartment that I slide the card into? Maybe, but if so, I don't know where it is. I think I should try and find some candles and matches on my walk home right now...