This may be hard to believe, but it is true. I was in the same situation as you and recieved my letter (80%) July 2011 but did not receive any payment until Feb 2013. Now, I did file another claim after July 2011, but I do not see why that would have held up the payment. Bottom line, you may get paid today, or you may be waiting a year or more.
My suggestion, do not make plans, spend money or allocate any of these forthcoming funds until you have the actual money deposited in your account, again it could take a while.