The U.S. Consumer Financial Protection Bureau is suing Capital One, claiming the company cheated customers out of $2 billion by misleading them.

The Consumer Financial Protection Bureau is accusing the bank of illegally misleading millions of customers about its savings accounts.

Capital One is being sued by the US government’s consumer watchdog agency for “cheating millions of consumers” and not paying more than $2 billion in interest to holders of its high-interest savings accounts.