Every day, I receive emails from service members, retirees and SBP beneficiaries who need access to their tax documents and believe that I have a way to get them. I'm sorry that I can't be more help, but I'm just a writer who writes about money.
If you still haven't received documents you need, please read Still Need Your Tax Statement? It contains all the information you need to get whatever statements you require. If the instructions there are unclear, please let me know and I'll see what I can do to make it easier to understand.
Good luck to you!