[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
I am writing to let you know that I have received and reviewed my bill that is dated the 25th of this month. Unfortunately, there are several errors on this bill. I was charged too much in interest, and there are two fees on the bill that I should not have incurred. I am quite displeased that these errors occurred and am seeking an efficient, rapid resolution to these problems.
Please write back, or call me at the telephone number listed in my signature line below, as soon as possible so that this can be resolved and so I can receive a credit for these billing errors. I look forward to speaking to you and to quickly getting this problem fixed. Thank you for your prompt attention to this important issue.
[Sender's first and last names]