D.A.’s General Service Office (GSO) may be contacted in the following ways: Toll Free:  800-421-2383 – US Only +1 781-453-2743  Via U.S. Post at: Debtors Anonymous, General Service Office PO Box 920888 Needham, MA 02492-0009 Street address for legal purposes only: 1116 Great Plain Ave, Needham, MA 02492 The General Service Office or the General Service