Recovering overdue funds from customers is frustrating. These overdue invoice letter templates show you the right tone and language to use.We've created ready-to-use collection letter templates. Read on below to find out what every letter should say in order to collect payment as soon as possible. Follow these 10 tips to write overdue payment letters for requesting outstanding payments from your late paying customers. Your debt settlement proposal letter must be formal and clearly state your intentions and what you expect from your creditors. A debt settlement letter is all you need to negotiate debts with your creditors. It asks you to pay a certain settlement amount to the collection agency. Access to Forms The Superior Court of Orange County offers several options to assist the public in completing court forms. The Court may dismiss your case, even if you are only 1 day late.