Carrier billing lets you buy things like apps or music and charge the cost to...

https://bluecircuitry.com/s/r-0IBSTdH2UYohDlySjPG

Carrier billing lets you buy things like apps or music and charge the cost to your phone account. Instead of using a credit card, the amount is added to your monthly bill or taken from your prepaid credit if you have a pay-as-you-go plan