NOTE: SPOILERS FOR THE DARK BROTHERHOOD questline follows

I took Vicente Valtieri's offer of the dark gift, yet after 3 days I am not a vampire, nor have I had any dreams.

I might have gotten cured accidentally, though I wouldn't know how.

Now I'm trying to becoming a vampire before killing Vicente Valitieri in the Purification quest. I've used he console commands:

Set PCVampire to 0

and

vampire.hasdisease to 0

Yet after 3 days, I'm still not a vampire and am getting no dreams. Are these the correct console commands? How can I accomplish becoming a vampire, preferably with the dreams and quest updates and everything (if any), before killing Vicente Valtieri?