Plain-language definition
A usage charge is an amount based on how much of a service or resource was consumed during the billing period.
Why it appears on a bill
It appears on bills with metered or measured activity, such as utility consumption, data use, minutes, units, or other usage-based services.
What to check
- Compare current usage with previous periods.
- Check the unit rate used for the calculation.
- Confirm whether the reading or usage record is actual or estimated.
- Review any tiers, caps, or overage rules.