Deal Link: https://storefront.points.com/priority-club-rewards/en-US/buy?product=buy&CAMPAIGNCODE=IHGaffiliate2013&c=PDCBuy
Expiry: Jun 3, 2016
You can get 100% bonus when you buy IHG Rewards Club Points until June 3, 2016. If you choose to buy the maximum number of points 60000, it will cost you US $690. And you'll end up getting 120,000 points.
Note: Minimum purchase of 11,000 points.