@Matt ******
Just so you're clear the "department of social welfare and human development" doesn't have any say in how long an extension of stay is issued for volunteering at the immigration office.
Extensions can be 90 days at a time, <- I know people who volunteer for foundations that only get that much OR they can be for a year at a time.
Totally comes down to the paperwork your foundation gives you more than any "new rule" <- which there is none..