Apology for the conduct of an employee
[Date] [Name] [Address] Dear [Name] Thank you for your letter of [date], complaining about the conduct of one of our employees. Please rest assured that we have investigated your complaint and that the person concerned will be penalized for their actions. Please accept our sincere apologies for any distress this situation may have caused you and be assured that it will never happen again. Thank you also for bringing this matter to our attention. We place great importance on the conduct of our employees and your complaint will give us the opportunity to solve any problem that may exist. Yours Sincerely [Your Name] [Your Title]