How to apply for visa extension in the Philippines?

the immigration office is located in the city of Manila, and you can find it by google or taking a taxi. The extension is more than 2, pesos due to the need to apply for Icard (a kind of temporary id card, which must be handled). Then the extension fee depends on how long you extend it, about 7 pesos in two months. There is really no accurate figure, and the immigration bureau has the final say. Take your passport, visa and a copy when you go through the formalities. You can also make a copy there. It is advisable to handle it on the same day, and don't just leave work in the afternoon. Good luck.