I would have to say its a good sign. It sounds like Cap One is just looking to verify your info before they can approve the app. From what I seen, if they were to decline a credit card app, it wouldve already been done after you applied. If a CC company is looking to get more info from you, or ask you to verify some info...usually means a good sign. Good luck, hope you get the card. I just recently got mine and liking it.
CH7 Discharged: 4-14-16 Rebuilding in Progress..... May 2016 - EX: 594, TU: 582, EQ: 619 July 2016 - EX: 629, TU: 600, EQ: 622