What is the proper way to address the Treasury about my bond?

So it's been several months now since I sent my paperwork off to the treasury for review and acceptance.  I have not seen a rebuttal or renegotiation or return of my bond nor any other documents sent to Melba Acosta, which as far as I can tell have all been accepted.  I am now under the stated assumption that everything is in order and that the bond is held for negotiations in the treasury and a small amount of interest is being accrued in an account that I am unaware of. So whats the next step?  How do I address this agreement now that the time has well since passed and I want to hold them to our contractual performances?  Is there a form letter somewhere that I can use?  Is there a specific set of things I need to address in a letter of my own wording?  Do I need to include my treasury direct information so they can reference the appropriate account? Thanks!