___________ (Name of the Customer),
Date: __/__/____ (Date)
___________ (Name of the Company),
Subject: Apology for poor services
Bringing to your concern, that I am ________ (Name) and I am the manager of ____________ (Name of the services).
We feel sorry for the poor services received lately by you from our side. We accept it was unacceptable and it will never happen again. We are working continuously with our team for a smooth service. We intend to give you the utmost priority and we expect a little patience from your side too.
You are facing this problem because we are shifting and shuffling some of our team members for a better flow of productivity and this stage requires a modest amount of time. Wholeheartedly, we apologize for the delay caused and we are very sorry for the inconvenience caused.
Please call our helpline for further concerns, we will be really happy to help you out.
Yours ____________ (Sincerely/Faithfully),