Don't do anything, just wait it out. All the contacting Senators, Congressman, writing letters to the Sec. of the VA, calling the 1-800 number, asking your VSO for help DO NOTHING BUT DELAY YOUR CLAIM. My claim took over two years then it hit special actions (program by VA to speed up cases over 24 months old) and in 2 months I was paid.
The truth is the VA is a waiting game. I did all of the above, showed financial hardship, showed couldn't work, had military records and civilian records of problem and they still put me in line like everyone else.
Sucks but its the truth.