customer underpaid invoice

1234, Main Street Boston, MA 02123 03/16/05 <Recipient Address Goes Here> Hello. We have received your payment of <$amount> on invoice number <invoice number>. Because <reason for underpayment>, you still show a balance owed of <$amount>. <Method of handling.> If you have any questions, please feel free to call us at <phone number>. Thank you […]
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