For several years Citi has had a shopping portal run by Cartera (the same company that runs airline shopping portals) called Citi Bonus Cash Center. It never got much attention seeing as its rates generally weren’t as competitive as other portals, but just in case you ever did use it, there’s some bad news.
If you visit the site now you’ll see the following message:
Citi Bonus Cash Center has discontinued.
We are sorry for any inconvenience. You can still shop and earn cash back as a statement credit with Citi Merchant Offers. Learn more at citi.com/merchantoffers.