Don't take verification personal. It for your protection and the way companies do business. It's not like someone is sitting there picking on you. It's all automated usually and red flags pop up from your credit report typically that make them request it. Try the prequal again.
Gardening since 12/15/2019. Goal 12/15/2021
@SLO805 wrote:my 6months is on the 13th...so I hope they dont auto cli to 150$ more hah.
I app'd for Venture and they wanted copies of my ID etc, I told them no im already a customer for 3 years. so that went down the drain. That was a pre-approval too lol
Hope i get a better offer next week or month
There are many threads/posts here where folks were offered a 'silly' CLI and turned it down just to be offered significantly more a few weeks later, so don't get discouraged!
I was once offered $200... foolishly, I accepted, but six months later they offered me another $1k. That taught me right there that sometimes holding off can make a big difference.
Side note: There's one 'caveat' to the above (that does not apply to the OP) - if you're approved for a $300 or $500 credit line, and Capital One offers you a $200 increase, I would suggest taking it. 
Your email must not be active for statements or something. They faithfully email me to tell me no.