• Grocery store giant The Kroger Co. filed a federal lawsuit against Visa Inc. accusing the card network of trying to force it to allow customers to verify EMV debit card purchases with signatures, and thereby route transactions to the Visa network, rather than with PINs as Kroger prefers, The …

EMV chip cards promise more secure transactions, which means less fraud, but so far implementing EMV has been problematic for many merchants, ISVs, and ISOs. Issues range from integration hassles to certification backlogs to unfamiliar chargebacks, not to mention frustration at the point of sale with slow transaction speeds. It …

• Prepaid card provider Green Dot Corp. appointed William I. Jacobs, who joined its board of directors in April, as board chairman. The chairman spot had been held by CEO Steve Streit, but the company, which recently had a proxy fight, is separating the roles. Jacobs currently is chairman of …

• The Merchants Payments Coalition, a Washington, D.C., lobbying group, released a new statement decrying what it calls a “poison pill” provision embedded in a bill proposed earlier this month by U.S. Rep. Jeb Hensarling, R-Texas, to reform the 2010 Dodd Frank Act. The provision would repeal the debit-interchange curbs …

• Wal-Mart Stores Inc. launched Walmart Pay in 11 states: Virginia, North Carolina, South Carolina, Nebraska, South Dakota, North Dakota, Iowa, Tennessee, Kentucky, Michigan, and Indiana. • Citing volatile exchange rates for the British pound, some money-transfer companies are temporarily suspending pound transfers until after results of today’s “Brexit” vote on …

• By the end of August American Express Co. will not hold merchants liable for counterfeit fraud chargebacks for transactions under $25 as part of its updated U.S. fraud policies for EMV chargebacks. By the end of 2016, AmEx plans to limit the number of counterfeit fraud chargebacks to 10 …

• Banking and financial-services provider BNY Mellon announced its Treasury Services unit has introduced Tokenized Payments, a service that allows its clients to send real-time or next-day payments to consumers. The service relies on Early Warning Services LLC’s clearXchange network and allows payments using the recipient’s email address or mobile …

•  Costco Wholesale Corp., along with Citigroup Inc. and Visa Inc., officially announced the new Citi-issued Costco Anywhere Visa consumer and business credit cards to replace Costco’s American Express Co. cobranded card; the new card gives 4% cash back on gas purchases, 3% back on restaurant and eligible travel purchases, …

• Noting that U.S. businesses send consumers write 3 billion paper checks annually, Wells Fargo & Co. said it will allow companies to send consumer payments electronically through a new service called Payment Manager B2P, expected to roll out early next year. The service will work with the clearXchange peer-to-peer …

• Visa Inc.’s Canadian unit posted an “open letter” in Canadian newspapers Thursday to protest Wal-Mart Stores Inc.’s plan to stop accepting Visa cards in its 400 Canadian stores beginning July 18 because of allegedly high acceptance costs. “Wal-Mart has initiated a public flight—something we never wanted—as they are using …