_____________ (Name of the company)
Date: __/__/_______ (date)
Subject: Apology letter
This letter is in reference to the complaint letter received by our __________ (support team/feeback letter/other) on date __/__/_____(date). We apologize for the inconvenience caused to our valuable customer due to ________________ (defective product/ poor customer service/mention issue).
We realized that our behavior was unacceptable and we regret that we have failed to fulfill the expectations that you expect from ____________ (name of the company). Our team will surely ensure that incidents like these will not happen again in the future.
I appreciate your kindness and patience. If you want to discuss further regarding this matter, you can always reach us at ____________(contact details).