As you realized, closing the account was rash and unnecessary but what's done is done. This is Capital One. The odds of a rep knowing how to reopen your account and/or doing it succesfully if it even is possible are sadly, slim to none. You probably just have to chalk this up to a mistake and move on. Not every decision we make can be undone, no matter how many times you call, and most creditors are not big on reopening accounts (which is why you rarely hear of it happening).
It's a shame though as you wasted a total of 6 HPs. Since the Venture One has no fee anyway, I would have just kept it for awhile and gone for the "correct" card later. Can't cry over spilled milk though. Better luck next time. Garden and go for the Venture in 6 months or something.
