For all WIC appointments and questions, please call 703-246-5599. Services this program provides: help pay for food; government food benefits; nutrition education; parenting education; postnatal care.Virginia WIC Program's Retailer Agreement. The purpose of this Agreement is to authorize retail stores to provide WIC food benefits in compliance. Business license taxes are levied annually and are typically based on a business's gross receipts. Regular U.S. Mail: WIC Vendor and Technology Branch, Policy Division, Food and Nutrition Service, P.O. Box 2885, Fairfax, Virginia 220310885. Can buy: • Any brand packed in water or juice. • Any variety of fruit, fruit mixtures. Looking for trusted help, information and resources for your Fairfax Virginia based home based business? This guide is for you.