Originally Posted by sdsearch

No, all the credit card gives you is a count of 15 nights toward elite status, not toward any promos. You have to stay another 8 actual paid nights by mid-April to get to 20 beyond the 3 (and thus to 30k additional bonus if you have promotion version C).

And that's assuming, of course, your 12 nights mentioned above are all paid. (Award nights don't count toward the promo either.)