[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Company name]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
We received a monthly bill from your company this week for services that your company provided to our company. I am contacting you to clarify and correct the amounts listed on the bill. It looks like we were double billed for a couple of line items, i.e., we were charged $20 x 2 and $40 x 2, but each of those charges should have only been listed once.
Please contact me at your earliest convenience so that we can resolve this billing issue. I look forward to hearing from you and to correcting our bill. Thank you in advance for your attention to this matter.
Sincerely,
[Signature]
[Sender's first and last names]