Update: It looks like this is only for some accounts. So if you get an error message it is not available to you 🙁
Get a FREE Set of Copper Mugs from Marlboro!! Login or register and GO HERE and confirm your address. NO PURCHASE NECESSARY. Limit one item per eligible smoker 21 years of age or older throughout the promotion. Offer available beginning at 12:00:00 p.m. ET on 12/21/15 through 11:59:59 p.m. ET on 1/4/16, while supplies last.