How To Write A Proffesional Complaint Letter. Below is a sample of a complaint letter to a landlord about a leak. Start by specifying the product purchased or service availed from the organization in question.

How to write a formal complaint letter about a coworker. Information to include in your letter. Your address your city, state, zip code ( your email address, if sending via email) date name of contact person ( if available) title ( if available) company name consumer complaint division ( if you have no specific contact) street address city, state, zip code














