[Date]
[Name]
[Company and Address]
Dear Mr. ……[Name],
I am writing of a matter which I am confident will be of interest to you.
Since I know your firm to be one characterized by quality and service, I was quite surprised at my experience on —————-[Dated] with your ——–[Position], ——–[Name]. [Mention Circumstances of bad service, example: Upon informing Mr. / Ms. ——— that he / she had mistakenly processed a withdrawal instead of a deposit, as I had requested, he informed me in impolite and aggressive terms that it was “my problem.” He then refused to process the correction.]
I would have not troubled you with the details of the conversation, as it will serve no reasonable purpose. I am certain, however, that you will be concerned of the possible loss of business that may occur if customers are continued to be treated in this manner.
Since I know you wish to uphold the good reputation of your establishment, I trust this information will be of interest and use to you. And you’ll take care in near future.
Sincerely,
[Name & Signature
Company name & Address]