I had hoped as much... Lately, NWA has not had HD on its list of such promos. It's not in the one you mentioned so this wont work. I used to use them to milk all NWA promos but they must have figured that out. Plus, while I use the NWA mall now and then, I no longer really rely on them for miles as I used to. They have botched up most of their promos in terms of posting miles. I had this problem with the UA mall (where buying HD GCs does work but I know of no promos right now) but have never had a problem with the AAdvantage mall (buying HD GCs no longer works for miles there though)