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.This program will help you write a letter that formally requests the money you are owed. This is called a Demand Letter. Not sure about how to counter your creditor's debt settlement offer? Download this free Debt Settlement Offer Letter sample. Money Owed Demand Letter – Strictly for debts or outstanding balances. Use this letter to help you negotiate a full and final settlement offer with a creditor. We'll walk you through how to put together a debt settlement letter that gets to the point and shows your creditors you're serious about sorting things out. Writing a past due letter?