The letter inviting you and your family/friends to the June 4 commencement ceremony was mailed last week. You should have received it if you graduated in Sept 12 or Jan 13 or expect to graduate in June 13 or Sept 13.
If you expect to graduate in June 13 or Sept 13 and did not receive the mailing, you probably did not have a graduation audit at the program office. Contact the office at 212-817-8220 to schedule your audit immediately.
If you did not otherwise receive the mailing, perhaps we do not have your correct address. Contact the program immediately if your address changed. Changes can only be accepted in writing and with your signature Use this form: http://cunyba.gc.cuny.edu/files/datachange.pdf