2007? I sent a copy of an job application I filled out for an employer I worked for 2 months .a church letter stating that I was a member since February 2007. 2012? I sent apartment lease contract . Social media papers, family video membership. Receipts from apple. All the apps,music and movies I've bought since 2009. It took me two months to figure out what to send. Finally did and got approved . Lol