A debt settlement letter contains a proposal offer that will hopefully open the door to negotiate a fair and reasonable debt settlement. To fill out this letter, clearly write your name and address at the top.Include the date and the collection agency's name and address. Here is a quick template for those looking to send a settlement offer to a collection agency or Pay for Delete. 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. I am writing in regards to the above-referenced debt to inform you that I am disputing this debt. Learn how to write an effective collection dispute letter with our guide and templates.