Mastercard is looking to put its Vocalink assets to work, partnering Worldpay to push the 'Pay by Bank' app that lets British online shoppers bypass the card giant's own network.
Pay by Bank enables customers of UK businesses to make online payments for goods and services via their banking app, and directly from their bank account.
The app was developed by Zapp, a unit set up by VocaLink in 2013 with the aim of bringing real-time mobile payments - in store, online and through apps - to millions of Brits by integrating its system into bank apps and tapping into the Faster Payments rails.
The initiative signed up a host of big name retailers and banks ahead of a planned 2015 launch, vowing to win 20 million users by 2017, rivaling traditional payments giants such as Visa and MasterCard - which now owns Vocalink.
Yet Pay By Bank has so far failed to live up to the hype and is currently still only available to users of Barclays' Pingit app.
Mastercard sees Zapp as an important part of its Vocalink acquisition, giving it a new route into UK debit payments, currently a Visa stronghold.
Pay by Bank will finally be made available to HSBC customers later this year, with others to follow. The new Worldpay deal will also see, from early next year, the service pushed to more merchants.
Mark Barnett, president, Mastercard in UK, Ireland, Nordics & Baltics, says the app is "set to play a big role in UK digital commerce, as more banks and merchants offer this as a payment option to millions of their customers".