I just got off the phone for the second time with HHonors, and neither agent had any information about bonus mile-earning aspects of promotion EWRDC (the second agent actually seemed to know what she was talking about, too). I had received an Erewards email myself regarding this promotion, but it only mentioned attaining Gold status.
Does anyone have a URL or email that confirms that there is a 50,000 point-earning potential for this promotion? Or should I keep calling back Hilton HHonors until someone confirms it?