Citigroup will refund customers $335 million after discovering it charged too much credit-card interest

The New York bank, one of the world’s largest credit-card issuers, said it will pay the money to U.S. customers whose annual percentage rate didn't reflect the full benefit of paying on time and other good behavior.
Read more: http://www.latimes.com/business/la-fi-citi-credit-cards-20180223-story.html?source=Snapzu