Transfer your Citi ThankYou points to LifeMiles and get 30% bonus.

LifeMiles can allow you to tranfer their miles to other reward points. For 48 hours you can get 30% extea when you transfer your ThankYou points. For example, you transfer 100 ThankYou points; at LifeMiles you will have 130 LifeMiles.

https://www.lifemiles.com/deals/detail-page

Only max of 500,000 points thats allowed for thos promotion.