From
Your Name
Company Name
Address
(Date)

To
Your Customer Name
Address
(Date)

Dear (Name)

ADVERTISEMENTS:

This is to acknowledge receipt of your letter of____________ (Date) in which you set forth your reasons for cancelling your purchase order No. ____________.

I am very sorry about the misunderstandings that led to this cancellation and have taken the matter up with management in order to ensure that a problem of this nature does not occur again.

As one of our valued customers, your satisfaction is one of our primary concerns. Please accept our apology.

(Name)
(Managing Director)