Carrier billing lets you buy digital goods or services using your phone. The...

https://www.bookmarking-online.win/carrier-billing-lets-you-pay-for-apps-games-and-other-digital-purchases-by

Carrier billing lets you buy digital goods or services using your phone. The cost is added directly to your monthly phone bill or taken from your pay-as-you-go credit. This means you don’t need a credit card or separate payment app