見積もり・請求書の金額間違いを訂正する英語メール例文集｜お詫びの構成とマナー

件名： Correction: Quotation for [Project Name] (Ref: #12345)

本文： Dear Mr. Smith,

I hope this email finds you well.

I am writing to inform you that we have found an error in the quotation sent to you earlier today (Ref: #12345). Unfortunately, the unit price for [Product Name] was listed incorrectly.

Please find the attached revised quotation with the correct pricing. I sincerely apologize for any confusion or inconvenience this may have caused.

We would appreciate it if you could replace the previous version with this updated one.

Thank you for your understanding.

署名： Best regards, Mika Suzuki Sales Department [Company Name]

件名： Revised Invoice: Invoice #INV-001 (Corrected Amount)

本文： Dear Ms. Brown,

Thank you for your continued partnership.

Regarding the invoice #INV-001 sent on March 20th, we have identified a calculation error in the total amount. We have corrected the figures and attached the revised invoice to this email.

Could you please discard the previous invoice and use this corrected version for your payment processing?

Please accept our sincerest apologies for this oversight. We will take steps to ensure this does not happen again.

If you have any questions, please let us know.

署名： Best regards, Mika Suzuki Accounting Department [Company Name]

件名： Urgent: Correction to Discount Rate in Invoice #98765

本文： Dear [Recipient Name],

I am writing to apologize for an error in the invoice #98765 we issued yesterday.

We realized that the 10% volume discount was not applied to the final price as agreed. Attached is the corrected invoice reflecting the proper discount.

I am very sorry for the mistake and any extra work this creates for your team. We value our business relationship and will be more careful in the future.

Thank you for your patience and cooperation.

署名： Best regards, Mika Suzuki [Company Name]