We are informing you that according to our records the invoice(s) listed below still remain(s) outstanding, beyond the agreed payment term.
Please contact me immediately at the number or email address listed below to communicate payment date and method. If there is any reason preventing you from processing the payment, please contact me to discuss the status of your account.
We need your immediate payment in order to avoid service, shipment, and credit hold on your account.
We hope it will not be necessary to proceed as indicated.