We never have phone call history all we use is fb chat pretty much everyday for proof at IAD was all those significant proof visit pictures recipe plus we did review the blue book package
We received blue book sometime in July 2016 then apply within 30 days got approved then last April 2017 my husband received a letter that they will call him on April 6 for interview and set appeal date last July 21
No lawyer for us but win appeal just gather a lot of proof that your marriage is guinuine study the blue book and learn both background from past remember date's and provide strong evidence .