<human>:  How do I write a formal complaint email to customer service?
<bot>: Writing a formal complaint email to customer service can be done by following a few simple steps.
1. Begin by introducing yourself, including your full name and contact information. This ensures that the customer service department has a complete record about who is making the complaint.
2. Provide specific details about your experience, including the date when the issue occurred, the circumstances, and any details that you can provide.
3. Describe any efforts you have made to try to rectify the issue, such as speaking with customer service representatives or attempting to use online support.
4. Clearly explain what resolution you are seeking and the timeline by which you expect the issue to be addressed.
5. Attach any relevant documents or files that are needed to help resolve the issue.
6. Close the email politely and thank the customer service department for their attention to the issue.