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1. Sender's Details: Full name, address, and contact information of the complainant

2. Date: Current date when the letter is written

3. Recipient's Details: Company name, address, and department/person responsible for handling complaints

4. Subject Line: Clear indication that this is a complaint about expired food products

5. Product Information: Detailed description of the food product, including brand name, type, package size, batch number, and expiration date

6. Purchase Details: Date and location of purchase, including store name and address

7. Description of Issue: Clear explanation of how the expired status was discovered and any resulting issues

8. Reference to Rights: Brief mention of relevant consumer protection laws and rights

9. Specific Request: Clear statement of what resolution is being sought (refund, replacement, compensation)

10. Closing: Professional closing with expected timeframe for response and contact information

1. Purchase Receipt: Copy of the original purchase receipt or proof of purchase

2. Product Photos: Clear photographs of the expired product showing the expiration date and any visible issues

3. Package Labels: Clear images of all relevant product labels and batch numbers

4. Medical Records: If applicable, copies of medical records or reports related to health issues caused by the expired product

5. Prior Communication: Copies of any previous emails, messages, or documentation of communication with the company