The retail giant has long sought to become a financial powerhouse. But after it acquired a neobank called One in 2022, fraud complaints multiplied and customer reviews cratered.

One Finance was plagued by fraud and customer dissatisfaction after a Walmart-controlled partnership acquired it in 2022. As Walmart began touting One to employees and others, the “neobank” — as such ultraconvenient, lightly regulated apps are called — weakened user security and outsourced customer support. Con artists took advantage, spurring a litany of customer complaints to regulators and the Better Business Bureau and across social media platforms. One froze some accounts and blocked access to its app and website from several countries, according to current and former customers and employees.

Frustrated users tanked One’s rating on Google Play from 4.6 to 2.8 stars. So many complaints inundated a Reddit community for One users that moderators made the page private “due to ONE fraud issue and their lack of customer support.” One’s Better Business Bureau page warns that scammers are using the One name and logo to steal money via “loan and impersonation scams.”

One’s problems echo the fraud and compliance issues revealed in a recent ProPublica investigation of Walmart’s financial services business. That article found that the company resisted calls to rein in fraud and skimped on employee training as more than $1 billion in consumer fraud losses were routed through Walmart’s financial systems over the past decade.