Mather Smith
69 N. Grant Street, Mid Lake City,
California 84301
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Mather Smith,
We are enclosing a check of $200 for completing payment against the invoice number 333. The check covers all the overhead expenses as well. We apologise again and look forward for your continued patronage.
Sincerely,
Paul smith