Cards

Users of the Walmart MoneyCard, issued by Green Dot, took to social media Wednesday to complain about problems they've encountered checking balances and accessing funds. The problems come at inopportune time for Green Dot.

Visa's rules for card acceptance exceed 800 pages — plus supplements — and MasterCard's are nearly 300 pages. But even though the card networks have explained their expectations in painstaking detail, the difference between strict rules and mere guidelines is much blurrier when finally given to the merchant.

Green Dot Corp., the prepaid debit-card company, agreed to split the roles of chairman and chief executive officer.

RushCard has agreed to a preliminary settlement of $20.5 million to resolve thousands of customer claims that their accounts were frozen last year.

Like any long-term relationship, Walmart and Visa have had their ups and downs. Sometimes these interactions were solely between the two companies; but many times, Walmart and Visa's conflicts gave a voice to the entire retail and payments industries.

While Walmart's lawsuit against Visa this week centers on authorization and routing methods, the Debit Network Alliance LLC — a group of independent debit networks — is also taking issue with EMV routing in addressing how terminal software is handling the choices presented to consumers.

Citigroup is testing Bluetooth beacon technology in a pilot that gives customers cardless access to branch ATMs after business hours, among other services.

Walmart and Visa have had a long and volatile relationship, and the retailer's latest lawsuit against the global card brand gives voice to a struggle that many other companies are too small to fight.

In the latest salvo in a long-running feud over the costs of processing payments, Wal-Mart Stores Inc. sued Visa Inc.’s U.S. unit on Tuesday, saying the company wants the retailer to use a less-secure method for verifying debit cards in order to route transactions through its own networks to boost profits.

Merchants that now accept EMV-chip cards at the point of sale are not happy with the user experience, and First Data sees itself in a position to help.