The U.S. Department of Homeland Security has updated their address and phone protocols. Every student should check their account in SIS for compliance to these standards. This office cannot update nor keep active a student's legal status without fully compliant records. New students will be able to make these updates after arrival but should familiarise themselves now with these rules.
You can find the new requirements here: http://issp.virginia.edu/sevis-address-and-phone-standards