Andrew Hall
456, X Street, Y Avenue,
Philadelphia, PA-19103
(123) 456-7890
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Andrew Hall,
We are really sorry for the mistake that occurred in the last order we processed for you. To correct the mistake we are now sending a $10 coupon that might help you to buy a new dress at a cheaper price. We shall try that there is no such incidence occurring in the near future.
Sincerely,
Orbán