I have several questions I hope someone can answer: 1. On the 21-534 EZ form question #5 "Has the veteran, surviving spouse ever filed a claim with VA". I did send in the informal claim and Va replied with a number to reference on future communication. Is that considered having filed a claim? Is the reference number the VA File Number? 2. Do I need to include a Marriage Certificate? My parents were never married to anyone else and no divorce. 3. People on this forum have mentioned sending all the info and claim in a three ring binder. Is this recommended? Thank you, thank you for any help. I have learned so much from this forum but I still feel confused!