Samsung Pay was included on the Galaxy S7 and Galaxy S7 edge launched by Verizon Wireless, despite a report that raised doubts.

The availability of the payment service on two such high-profile devices is important for the South Korean vendor. The US is one of two markets, along with South Korea, where Samsung Pay is available.

The smartphone giant is eager to build on its initial take-up, and the support of the country’s largest operator is central to this.

Android Police said the US operator had removed the payment service from its shipments of the phones. However, it subsequently reported that the Samsung app was available as a download via the Play Store or Galaxy Apps, in time for the launch.

Verizon itself tweeted: “Samsung Pay is undergoing testing & will be available on schedule for our 3/11 launch of Galaxy S7 & Galaxy S7 edge.”

This is not the first sign of tension between the two companies. Last autumn, Verizon Wireless added Samsung Pay to the Galaxy S6, S6 Edge, S6 Edge+ and Galaxy Note 5 devices, but only after a delay.

Verizon (along with AT&T and T-Mobile US) were backers of the now-defunct Isis (later Softcard) venture, which was absorbed by Google. As part of the same deal, the three operators agreed to support Google’s Android Pay, a rival to Samsung Pay.