Austin Parker,
1234, West 67 Street,
Carlisle, MA 01741,
Cell:-(123)-456 7890
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Austin Parker,
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 occur
Sincerely,
Andrew hall