Carrier billing lets you buy apps, games, or services and pay for them through...

https://www.first-bookmarkings.win/carrier-billing-lets-you-buy-digital-goods-or-services-using-your-phone-the

Carrier billing lets you buy apps, games, or services and pay for them through your phone bill. Instead of using a credit card, the charge is added to your monthly bill or taken from your prepaid phone credit