You can query the usage details of an Object Storage Service (OSS) resource plan in the Billing Management console.
Procedure
Log on to the Expenses and Costs console.
In the left-side navigation pane, click Manage Reserved Instances.
On the Manage Reserved Instances page, set Resource Type to Resource Packages.
On the Details tab, view the usage details of the resource plan.
By default, the usage details of valid resource plans and resource plans that have expired for less than one year are displayed.
Optional: If you want to query the usage details of a resource plan in a specific time range, you can configure the query conditions such as Instance Name.