How do you write a letter of complaint about a lie told by company?

To write a letter of complaint about a lie told by a company, start by clearly stating your concern in the opening paragraph, specifying the lie and its impact on you. Provide any relevant details, such as dates, names, and specifics of the incident, to support your claim. Request a resolution, whether it's a correction, compensation, or an explanation, and conclude by expressing your hope for a prompt response. Remember to keep your tone professional and polite throughout the letter.