HENNERY SMITH
2365 S Mayfield Ave
Chicago, IL 60652
Cell: (123)-555-1234
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear HENNERY SMITH,
I really apologise for the mistake of sending you a wrong sized blazer. Such kinds of errors rarely occur, but then do happen sometimes. Anyway, we have tried to rectify our mistake, and have sent you a new piece. I have even sent you some material to package, so that you can send the old one to us.
I am also attaching a 30% reduction promo coupon, so that you can buy at a cheaper price for us the next time.
Sincerely,
Abhinav