Spend limits
A spend limit restricts the amount a subscription can spend on a particular type of usage in a rating period. For example, you can apply a $100 spend limit for international calls to a mobile subscription.
Smile resets the value of each spend limit to $0 at the start of each rating period and when a subscription changes plan.
If a customer exceeds a spend limit, Smile applies a feature to the subscription. A feature is an item that modifies a subscription and that can be switched on and off, for example, shaping or call barring. The features applied to a subscription are displayed on the subscription's Features page.
Information about the spend limits that apply to an account's subscriptions is displayed on the account's Spend Limits page.