Clicked on the link just to see what would happen. Received the following:
You're now registered to take advantage of this exclusive offer. Each stay through April 30, 2015, will count double toward the number of stays needed to achieve your 2016 tier status. Book now and get a boost on upgrading your tier status today.
UK based HH Gold, only 1 stay booked between now and 30 April, no email received.