The U.S. consumer finance watchdog accused Walmart and the workforce payments company Branch Messenger on Monday of forcing more than a million delivery drivers into using accounts that cost them more than $10 million in junk fees.

Walmart and a financial tech company are being sued over allegations the retail giant forced drivers to use costly, complicated deposit accounts in order to get paid and raked-in millions in the process.

The Consumer Financial Protection Bureau filed a complaint Monday against Walmart and Branch Messenger for allegedly forcing delivery drivers to use costly deposit accounts in order to get paid.

The federal government is suing Walmart and the fintech company Branch Messenger, accusing the companies of forcing employees to use specific accounts to access their pay and of opening the accounts on the employees’ behalf.

CFPB sues Walmart and Branch Messenger over allegations of opening up deposit accounts for workers without their authorization.

The Consumer Financial Protection Bureau has filed a lawsuit against Walmart and Branch Messenger, alleging the companies forced delivery drivers to use costly deposit accounts to get paid. Bentonville-based Walmart operates the Spark Driver Program,

The Consumer Financial Protection Bureau (CFPB) has filed a lawsuit against Walmart, accusing the retail giant and its partner, Branch Messenger, of defrauding delivery drivers out of millions of dollars.