An apology for claim of debt not due

AN APOLOGY FOR CLAIM OF DEBT NOT DUE

Mr [CONTACT name],
You are quite right - you owe us nothing. I have attached a new State of your account with details on its balance which indeed is zero!

As you will see, we have made a mistake on our invoice [number]. The amount should be [amount], not [amount]. For some reason, the reduction of which you should be on your invoice number (number] do you had not been granted; It amounts to [amount]. Otherwise your account has not been credited following the return of goods because our store had not reported to the accounting department that this return was imminent.

I feel sorry for all these errors [specify the areas], and I don't understand why all this happened with you. I do not understand not why on do not understand you soon enough when you have cases.

We have been all shocked here by the treatment you received so that I can tell you that your future transactions with [your company] will benefit from special attention on the part of each of us. I hope to receive your next order, this will be an opportunity for me to honour this commitment.

Thank you for your patience.

Receive, dear Sir/Madam, my best regards.

The Director-General

[NAME OF CEO]