[DATE, ex. Wednesday, June 11, 1998] 

[NAME, BANK AND ADDRESS, ex.
John Smith
XYZ Bank
1234 First Street
Suite 567
Anycity, Anystate  85245]
 

Dear [NAME, ex. John Smith],

As a result of a clerical error on your part, our check issued to [NAME OF CHECK PAYEE, ex. ABC Corp.] bearing no. [CHECK NO., ex. 9999] and dated [DATE OF CHECK, ex. June 1, 1998] in the amount of [AMOUNT OF CHECK, ex. $10,000] was not honored.

This caused us embarrassment with our key supplier. Would you therefore provide us with a letter confirming the bank's error, so that we can provide a copy to our supplier and ensure that they do not loose confidence in our financial viability. 

Thank you in advance for your anticipated co-operation. Please feel free to call me if you have any questions.

Sincerely,

[YOUR NAME, ex. Jill Jones]