I'm retired AF and had a 40% disability rating. In Feb 2019 I filed for revaluation in a couple of areas. I was increased in Aug to 50% then 60% in Sept . I received my increased payments in Sept and Oct. My question is should I receive back pay to the date my claims were submitted? I called the 800 number for the VA and the gentleman I talked to was kind of clueless. He said he saw no indication that I was due any back pay but that I could file an appeal? Also if I am due back pay how long does that usually take? Thanks for any help and thanks to everyone here for their service! Have a Happy Holiday!!