Arrears Beneficiary info Published July 26, 2010 RAF Mildenhall Retiree Activity Office RAF MILDENHALL, England -- Who is your arrears beneficiary? This area continues to be a major problem at DFAS-Cleveland. Who have you designated as your arrears beneficiary for your last month of retirement pay? We do not know on which day we will die; therefore you should ensure the information on your arrears beneficiary is current at DFAS-Cleveland. Contact your nearest RAO about completing DD Form 2894 (Designation of Beneficiary Information).