Could not find public link. offer showed up when logged into chase rewards. See attached screen shot.
"Book your travel with Chase Ultimate Rewards for competitive rates and flexible ways to pay. No travel restrictions. No blackout dates.
Earn a total of 10% cash back on up to $2,500 in total hotel purchases made through Chase Ultimate Rewards®. Offer valid on purchases made March 1 - March 31, 2019."
Update: This is the exact copy paste language from the website:
"10% cash back on hotels
Earn a total of 10% cash back on up to $2,500 in total hotel purchases made through Ultimate Rewards®. Travel anytime.
During the promotional period of March 1 to March 31, 2019 11:59 p.m. E.T., earn an extra 9% cash back on up to $2,500 in combined hotel purchases made through Chase Ultimate Rewards® using your Chase Freedom card. The bonus cash back earned is in addition to the 1% cash back you earn on all purchases for a total of 10% cash back, which means you can earn up to $250 total cash back ($25 cash back plus your $225 bonus cash back). Bonus cash back will post to your account within a week of the transaction posting, and will appear on your monthly credit card billing statement and be available for use within 1-2 billing cycles. To qualify for this promotional offer, account must be open and not in default at the time of fulfillment. This promotional offer is non-transferable. For more information about your rewards program, see your Rewards Program Agreement."