For Donations: If you would like to support our cause, please mail your tax deductible check to: Aziz and Gwen Sancar Foundation 311 West University Drive Chapel Hill, NC 27516 Aziz and Gwen Sancar Foundation (AGSF) is a non-profit, 501(c)(3) organization. Contributions made to AGSF are tax-deductible to the extent permitted by IRS. AGSF's tax identification number is 26-0871109.