The Consumer Financial Protection Bureau (CFPB) filed a lawsuit against Walmart and fintech company Branch Messenger for allegedly compelling over a million delivery workers to utilize costly deposit accounts to access their paychecks.

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.