[DATE, ex. Monday, March 31, 2008]

[NAME, COMPANY AND ADDRESS, ex.
Link Building
XYZ Inc.
1234 First Street
Suite 567
Anycity, Anystate  85245]

Dear [NAME, ex. Link Building],

I believe there has been a slight mistake.

I have just received your [DOCUMENT, ex. your account summary for June].  Unfortunately, I am unable to reconcile your invoices to the $[AMOUNT] figure you state as my account balance.  My records indicate as follows:

INVOICE/PAYMENT                                          AMOUNT
[LIST INVOICES AND PAYMENTS, ex.
#2352344                                                          250.00
Payment, Check #123, 5/1/98                             -250.00
#2342564                                                          500.00
Payment, Check #123, 5/1/98                             -200.00
Balance                                                            300.00]

I have taken the liberty of enclosing copies of the above invoices and checks.  Please check your records to determine the source of the discrepancy and call me at XXX-XXXX once the difference has been reconciled.

Sincerely,

[YOUR NAME, ex. Jill Jones]