Unless Capital One has recently changed their policy about this, as far as I know and from all I’ve read online, this card will not graduate to an unsecure card. I’ve heard people complaining about having this card for 2 or 3 years and never graduating.
I’m sure they could do it if they wanted to, so hopefully the person that you spoke to was right. I’ll see what I can find out, maybe I can call and ask to see if they tell me the same thing.
If I remember well, ambersun mentioned she was told that this is not possible. I hope she reads this so she can comment.