Invoices will print and mail every thirty days until paid in full. Invoices will also be available online at www.sprint.com/localbusiness. Please note that the Invoice Details you view online are a representation of your invoice as of the last invoice date. Invoices will not be updated between cycles. Payments you have made will be updated online and viewable under "Paid" invoices and will be reflected in the Amount Due under "Viewing Open Invoices".