1. Previous Correspondence: Reference to prior communication attempts, used when there have been previous informal requests for payment

2. Interest Calculation: Breakdown of any interest charges, used when claiming interest on the outstanding amount

3. Settlement Offer: Proposed payment plan or settlement terms, used when willing to negotiate payment terms

4. Without Prejudice: Legal reservation of rights, used when making any concessions or settlement offers

5. Carbon Copy Recipients: List of other parties receiving copies, used when relevant third parties need to be informed

1. Statement of Account: Detailed breakdown of all transactions and current balance

2. Original Contract/Agreement: Copy of the underlying agreement giving rise to the debt

3. Invoice Copies: Copies of all relevant unpaid invoices

4. Payment History Record: Document showing all payments received and outstanding amounts

5. Correspondence Log: Copies of previous payment requests or relevant communication