The Complaint Letter About Bus Service is a formal document used when passengers or other affected parties need to report issues with bus services in Hong Kong. This document type is particularly important in Hong Kong's highly regulated public transport system, where service quality standards are strictly monitored. The letter serves multiple purposes: it formally documents incidents or service issues, initiates official investigation processes, and creates a record for potential regulatory review. The document should include specific details about the incident, reference relevant Hong Kong transport regulations, and clearly state the desired resolution. It's typically used when immediate resolution through other channels (such as phone or in-person complaints) has not been successful, or when the nature of the complaint requires formal documentation. The letter must comply with Hong Kong's complaint handling procedures and may be used in subsequent administrative or legal proceedings if necessary.

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

2. Recipient's Details: Name of the bus company, department, full address

3. Date: Date when the letter is written

4. Subject Line: Clear indication that this is a complaint about bus service with reference numbers if available

5. Incident Details: Specific details including bus route number, bus ID, time, date, and location of the incident

6. Description of Complaint: Clear and factual description of the issue or incident

7. Impact Statement: Explanation of how the incident affected you or others

8. Previous Communication: Reference to any previous attempts to resolve the issue

9. Requested Resolution: Clear statement of what action or outcome you are seeking

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