To obtain a billing history for a customer:
1. Go to Utilities: Administration: Billing: Customers: Bill and Search for the customer.
2. Click Historyfor that customer. You can now access all invoices that have been generated for that client.
More
1. Billing
3. Adding, Validating and Syncing Servers
5. Creating Additional Charges
8. Assigning Hosting Plans, Charges and Lists
10. Running Bills
15. Billing Reports
17. Viewing a Customer's History