Shalom, as the end of the year is around the corner it's a good time to get
the paperwork in for Arnona. If you have everything together you can fax it in and call after 2 weeks to make sure that they received it. The Arnona fax number is 02-629-6398, be patient it might be busy. The follow up number is 629-6000 or 629-6333.
They need to see:
1) main form -
http://www.jerusalem.muni.il/jer_sys/publish/files/304/392614645.pdf
2) Betuach Leumi power of attorney (that you don't receive money from them)
http://www.jerusalem.muni.il/jer_sys/publish/files/304/292612133.pdf
3) a letter from your school that you are a student and how you have
income, less then 2,000 shekels a month should be reported for maximum
discount and spouse does not work
4) a copy of your rental agreement or paperwork showing you own your
apartment
5) copies of the entire family's tudat zehuts or passports.