Carrier billing lets you buy apps, games, or digital content and charge the...

https://www.golf-bookmarks.win/carrier-billing-lets-you-buy-apps-games-or-subscriptions-and-charge-the-cost-1

Carrier billing lets you buy apps, games, or digital content and charge the cost to your phone account. You can add purchases to your monthly phone bill or have the amount taken straight from your pay-as-you-go credit