Mastercard has recruited PPRO Group to help push the uptake of of its Pay by Bank app to merchants in the UK.
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.
The card scheme says Pay by Bank will finally be made available to HSBC customers later this year, with others to follow.
The deal with PPRO Group follows a similar agreement with Worldpay back in July, as Mastercard seeks to embed the option into merchant checkouts and at a growing number of Payment Service Providers.
Jonathan Wood, SVP of Mastercard says a pilot trial saw consumers adopting the Pay by Bank app at scale, with over a third of a million on-boarded users.
"We saw merchants increase sales and conversion rates, while reducing the costs of fraud," he says. "Consumers will benefit from seeing how much is in their bank account before they pay, and settle payments instantly, all from within the secure environment of their trusted mobile banking app."