You should visit this link again to re-submit your personal information should there be any changes in your email, phone number, or residential address during your program. This needs to be done within 10 days of the change to remain compliant with J-1 Visa regulations.
You will not be able to apply for a Social Security card if you have not contacted us to provide this information. You should wait 48 hours after submitting this personal information to Cultural Vistas for visa validation and a minimum of 10 days after you arrive in the United States before applying for your Social Security number.
You can find more information about applying for a Social Security Number here.