Sample
[DATE, ex. Wednesday, June 11, 2006]
[NAME, COMPANY AND ADDRESS, ex.
Robert Brown
XYZ Inc.
1234 First Street
Suite 567
Anycity, Anystate 85245]
Dear [NAME, ex. Robert Brown],
I would like to thank you for your order of [PRODUCT(S), ex. 4 Magnaflux compressors]. Due to [BRIEFLY STATE REASON, ex. a backlog of orders for this product], however, I regret that your delivery will be delayed. Although I will do my best to expedite your order, we expect shipment to be made on [DATE, ex. Wednesday of next week].
Allow me to apologize for any inconveniences this may have caused you. We look forward to serving you again.
Sincerely,
[YOUR NAME]