The sample letter below will help you to get details on the following: • Why a debt collector thinks you owe this debt. A cease and desist letter is a formal written request that you send a debt collector telling them to stop contacting you about a debt.1. Enter your name and address at the top. The letter begins with the creditor's contact information, including their name, address, phone number, and email address. Our firm can send the debtor a letter containing details about the debt and proposing a repayment timeline. A demand letter is written notice to the debtor that includes a formal demand for payment of the debt. A debt collection letter essentially proves you owe the debt collector money. Arising out of commercial transaction is not debt under the FDCPA). Gather all pertinent documents to ensure you have proof of money owed. Writing and sending the letter provides proof that you have notified the other person of this Outstanding Debt and have Requested Payment.