Earlier this month, Citigroup Inc. agreed to pay $100 million to settle charges that it rigged interest rates. Now over in the bank's credit card department, it's shelling out even more money.
Citigroup (NYSE: C) said Friday it plans to refund $335 million to more than a million of its customers.
According to the Consumer Financial Protection Bureau, some 1.75 million customers were overpaying interest on their credit cards.
Citi confirmed that it will refund those customers in overpaid interest…
