In Reply to: the cards should come with instructions posted by nera on Friday, 1. May 2009 at 06:48 Bali Time:
There is a small stall to the right outside the entrance to the Matahari Department Store. He sells various SIM cards including Mentari. It is best to ask him to set up the SIM. He gave me the various numbers to ring for cheap OS calls and to check the balance of credit remaining. I wrote these down.