First sentence : Remind the reader of your attempts to reach him or her.
Second, third, and forth sentences : Threaten the reader, when appropriate. Otherwise, underscore the importance of paying the bill.
Dear John Dillard, Although we have contacted you by phone and letter numerous times since April 10, your $400 bill remains unpaid. Unless we hear from you by November 8, we must turn your account over to a collection agency. To avoid this, please send us a check immediately or call me at extension 1234. Sincerely,
Never Play Truth or Dare
Truth or Dare may be great for adolescents’ parties, but it’s definitely taboo in the business world. If you make a threat, be prepared to carry it out, whether it is contacting a lawyer or collection agency, or indefinitely cutting off the reader’s credit.