Dear [Name], I am writing to bring to your attention a significant error in cancelling my [Product/Service] with your company. I am greatly disappointed by the mishap and kindly request immediate rectification of this situation. On [Date], I received a notice stating that my [Product/Service] was cancelled due to [reason]. However, after reviewing the circumstances thoroughly, I can confidently say that this cancellation was an oversight or mistake on the part of your company. I would like to outline the specific details below: 1. Accurate Information: As stated in my previous correspondence, there were no grounds for the cancellation of my [Product/Service]. The information you received and acted upon was either incomplete or inaccurate. 2. Timely Payments: I have been a loyal and prompt customer for [duration], consistently making timely payments for the services rendered. Therefore, there is no plausible reason for my [Product/Service] to be cancelled. 3. Contractual Agreement: Please refer to the terms and conditions outlined in our contractual agreement signed on [Date]. The cancellation clause specifically states that unless there is a violation of the terms from either party, cancellation should not occur without proper notification and valid reasoning. In light of the aforementioned points, I expect an immediate resolution to this matter. I kindly request reinstatement of my [Product/Service] and a formal acknowledgment of the error on your company's part. Furthermore, I expect confirmation that no additional charges or penalties will be enforced due to this mishap. If this matter is not resolved within [reasonable time frame], I will be left with no choice but to escalate this issue further through legal channels and file a formal complaint with the appropriate regulatory authorities. I am confident that your company values its customers and takes seriously the need for transparency and rectification of errors. I trust that you will take swift action to address this matter promptly and to my satisfaction. Furthermore, I eagerly await your prompt response and a resolution to this unfortunate situation. Yours faithfully, [Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number]