Well, for what it's worth, I called to activate my card today and was also told (twice) that I am in for the 50k miles after 1st spending. He said it should take 6 to 8 weeks after the purchase for the miles to post, so I may still be waiting a bit to know for sure.

Oh, and I have both a UA and a CO card that I got last spring with the 50k bonuses.