Carrier billing lets you buy apps, games, or digital content and charge the...
https://violetmetric.com/s/wG697QJym78eENaFjZNkJ
Carrier billing lets you buy apps, games, or digital content and charge the cost directly to your phone bill. If you’re on a monthly plan, the purchase appears on your next bill. For pay-as-you-go users, the amount is taken from your available credit