Joseph Hall
1902, X Street,
Madison Avenue,
Los Angeles, CA-90001
(123) 456-7890
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Joseph Hall,
We thank you for letting us know about the faulty meter reading for which we had charged you. We sent an enquirer and he said that you were actually right. The meter reading has been corrected not and we are sending you a new statement that has been corrected.
II am apologetic about the error.
Sincerely,
Achal