The Acme Corporation ordered desktop computers from your company for the amount of 750,000 baht and you sent an invoice (number 5770034 dated October 21, 2015) to your customer. According to the payment terms Net 30 agreed by both parties, the payment was due on November 22, 2015. However, the customer hasn’t settled the payment until today.
Write the credit collection letter to the Chief Accountant of The Acme Corporation informing that they need to make the payment within a week.