Pay-by-phone lets you make purchases using your mobile device without needing a...

https://brookssnewinsight.scriblorax.com/posts/how-to-compare-apple-pay-google-pay-and-carrier-billing-for-checkout-speed

Pay-by-phone lets you make purchases using your mobile device without needing a credit card. Charges are added directly to your monthly phone bill or deducted from prepaid credit, making checkout quick and simple