In Reply to: Mic, how much is a 1 month extension and posted by surfaddict on Tuesday, 6. April 2010 at 12:57 Bali Time:
Agents usually charge anywhere from about 500000 - 700000rp.
Sometimes they keep the passport for a week or so before returning.
You need to do this ahead of time before visa expires.
A family member of mine pays 500000rp per extension but sorry I do not have the agents contact details.
Depending where you stay there are usually a few visa/extension agents around Kuta & Legian
eg there used to be one in Jln Nakula not far from Legian St
Also some visa places listed below under Immigration Services / Visa Extensions but not sure if all do extensions etc, nor do I know what they are like to deal with.