You have 1 year from the date on your decision to request a decision review , unless you have a fiduciary claim or a multiple party claim, and you can find out if one of these rare situations applies to you
If I'm going to file an appeal, when do I have to follow the current VA procedure for a Board hearing?
You will follow the new process if appealing a VA decision if you received it on or after February 19, 2019.
What if I want to mail in new evidence instead of the phone thing? Can I do that?