__________ [Customer name]
___________ [Address]
Dear ____ [Customer name],
We can definitely understand your annoyance in not receiving the _______[number and item] that you ordered. Orders requiring __________[special work] need ____[time span] for delivery. Our salesperson probably did not make that clear and we are sorry for that misunderstanding.
Your order will be shipped ____ [day and week it will be shipped] and will arrive within ____ [time period]. Please forgive the delay. We know that you will be satisfied with the final product.
Sincerely,
_____________ [Your name]
_____________ [Title / Designation]