Squeezing my SDP until it screams

I don't think I have mentioned that I have been deployed here in Iraq for thirteen months now. One of the many benefits offered to us simple Soldiers while serving in a Combat Zone is the Savings Deposit Program. The Savings Deposit program is a form of a CD, but the yield is much higher. One of features is I get to keep my cash in the SDP for an additional 90 days, still earning interest after I redeploy. I have also been extended for 90 days so I emailed DFAS asking if I get an additional 90 days of interest on my deposit. This extension has taken everybody by surprise, but I hope the people at DFAS will have some good news for me.