1. Previous Communication Reference: Include when there have been prior discussions or correspondence about the refund

2. Legal Basis: Reference to specific legal rights when dealing with complicated cases or when legal action might be considered

3. Alternative Resolution: Proposed alternative solutions if full immediate refund is not possible

4. Urgency Statement: Include when the refund is particularly time-sensitive with explanation of urgency

5. Banking Details: Include when providing bank account information for receiving the refund

1. Original Payment Proof: Copy of bank transfer receipt, payment confirmation, or other proof of payment

2. Original Invoice/Receipt: Copy of the invoice or receipt related to the advance payment

3. Contract or Agreement: If applicable, copy of the original contract or agreement under which the advance payment was made

4. Communication Records: Copies of relevant email exchanges or other correspondence regarding the advance payment

5. Cancellation Notice: If applicable, copy of any cancellation notice or documentation showing why services/goods were not received