How do I get an exception to policy to backdate a promotion?

On 04DEC13, I attended the promotion board to become an E5. However, my DA 3355, the PPW, was not submitted to HRC and as a result, I was not considered promotable to "Big Army". I currently have 330 points registered on my PPW and my cutoff score was 39, due to being in a STAR MOS.<div><br></div><div>Per Section 3 of the Memorandum For United States Army, Promotion Work Centers (PWCs) for Department of the Army Promotion Point Cutoff Scores for&nbsp;</div><div>1 January 2014 and Junior Enlisted Issues for the Active Army (AA),</div><div><br></div><div><div>3. Eligible Soldiers who meet the following criteria may appear before a&nbsp;</div><div>promotion board between 20 November 2013 through 4 December 2013 as follows:&nbsp;</div></div><div><br></div><div><div>c. To SGT primary zone: Corporal(CPL)/Specialist(SPC)with minimum 35&nbsp;</div><div>months TIS and 7 months TIG.</div></div><div><br></div><div>At the time of my board, my TIS was 40 months and my TIG was 16 months.</div><div><br></div><div>Once I was not able to identify myself on the promotion list, I addressed the issue through the proper channels, but I've been informed that HRC does not accept anymore Exceptions To Policy (words to that effect stated by the BN S1 NCOIC) to backdate promotions that were not submitted in a timely fashion. I've been told that I will now have to wait until February and hope my points don't jump.</div><div><br></div><div>However, I've seen in the past (2013), where other Soldiers have found themselves in a similar situation, but submitted documentation to HRC to have their promotion orders backdated.</div><div><br></div><div>My question is, does anyone know where I can find this and what information needs to be sent up? I want to have the right information so I may attempt to rectify the situation.</div>