You can check the status of the billing reports you've ordered. When you order a report, you can choose to be notified by email when it's ready or you can check on its status the next time you're in Control Center. If you submit an order and decide you need to make changes to it, you can. Select the box next to the order, click Edit Order, make your changes, and then click Submit Order.
To check the status of a report you've ordered: