Due to the unpaid payment by the buyer, the amount of this bill as a proof of arrears shall be subject to the total amount. According to the relevant information, your delivery note has been marked as "received and unpaid", so it can be said that your delivery note is both a settlement note and a debt note, so it can be used as a basis for debt, and it can also be noted that this delivery note has the same payment basis and the same legal effect after being signed.