[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],

We have just received your payment of $[AMOUNT, ex. 5,200.24] for [PRODUCT(S) / SERVICE(S), ex. your order of five Magnaflux compressors].  Our records indicate that you have overpaid an amount of $[AMOUNT, ex. $200.24].  We will be pleased to credit your account and use the overpayment against your next invoice.

Thank you for your business.

Sincerely,

[YOUR NAME, ex. Jill Jones]