In Reply to: credit posted by Roo_Ted on Wednesday, 11. March 2009 at 12:14 Bali Time:
No, your Mentari SIM will have expired in August.
I had a Mentari card which I bought credit in January this year. The recorded message in English told me that this credit would only last 3 months and then I had a further 1 month to buy new credit. After that the SIM would expire.
If you know someone going to Indonesia in May they could buy more credit of say Rp 25,000 for you and thus keep the SIM current.