I got the offer here's the t+c's which seem to require separate registration;
Offer valid February 1, 2017, through April 30, 2017 (“Promotion Period”) at any hotel or resort within the Hilton Portfolio. Hilton Honors™ members must first register at HiltonHonors.com/BonusPromotion prior to completing a stay within the Promotion Period. Registered Hilton Honors members will earn 2,000 Bonus Points per night during the Promotion Period. Registered Hilton Honors members will only receive Bonus Points for nights completed during the Promotion Period, regardless of a check-in date before the Promotion Period begins or a check-out date after the Promotion Period ends. There is no limit to the total amount of Bonus Points that may be earned during the Promotion Period with this offer. However, there are restrictions on the amount of Base Points that can be earned on a single stay at certain brands. See Honors Terms & Conditions for more details. Bonus Points earned on Base Points do not count toward tier qualification. Please allow six to eight weeks from completion of your stay for points to appear in your Hilton Honors account.
This offer is valid for select Hilton Honors members who receive this offer after registering for the “2K Every Day” promotion and is not transferable. This offer is valid for all stays completed between March 1, 2017, and March 31, 2017 (“Promotion Period”). Select members will receive 1,000 Bonus Points per weekend night within the Promotion Period. Weekend nights are defined as Friday, Saturday and Sunday nights. Bonus Points earned on Base Points do not count toward tier qualification. Please allow six to eight weeks from completion of your stay for points to appear in your Hilton Honors account.