_____________ (Name of the company)
Date: __/__/_______ (date)
Subject: Apology letter
On behalf of _______________ (company’s name), I am writing this letter to offer my sincere apology regarding the unprofessional behavior of our __________ (mention department) team. We apologize for the incident and we admit our mistake.
We have investigated this matter and came to the conclusion that due to ________________ (mention reason for unprofessional behavior), you have faced this issue. I want you to know that we have taken serious actions regarding the team members involved in this unprofessional act. I promise you that incident like this will not happen again in the future.
Once again, I apologize for everything that has happened and expect your forgiveness. Please let us know your feedback regarding this matter and you can always reach us at _________ (mention contact details).
Thanks for your time and support.