[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date] [Recipient's Name] [Recipient's Position] [Company Name] [Address] [City, State, ZIP] Subject: Apology for Error in Advertisement Dear [Recipient's Name], I hope this letter finds you well. I am writing to express my sincere apologies for the error that occurred in the recent advertisement campaign that we launched for [Company Name]. As the marketing manager, I take full responsibility for this oversight and the inconvenience it might have caused. Firstly, allow me to explain the circumstances that led to this unfortunate mistake. Due to a technical glitch in our advertising software, an incorrect phone number was included in the contact information provided in the advertisement. This caused confusion and frustration among potential customers who tried to reach out to us but were unable to do so. We deeply regret any inconvenience this error may have caused to both your organization and our valued customers. Rest assured, we are taking immediate steps to rectify this situation and ensure that such oversights do not occur in the future. To address this issue promptly, we have already taken the following actions: 1. Corrected the error in all our online and offline advertisements, ensuring the correct contact information is updated and easily accessible. 2. Conducted a thorough review of our advertising protocols and implemented additional measures to double-check every aspect of our advertisements before they go live. 3. Established a dedicated customer support team to promptly address any concerns or queries from customers who may have been affected. Furthermore, we understand the importance of informing our customers about this error and providing them with a genuine apology for any inconvenience caused. To communicate our regret, we will be issuing a formal public statement in regional newspapers and online platforms, as well as sending out individual letters of apology to those who tried to contact us but were unsuccessful. We deeply value our collaboration with [Company Name] and will make every effort to regain your confidence and trust. Should you have any additional concerns or suggestions on how we can improve our process moving forward, please do not hesitate to contact me directly at [Your Phone Number] or [Your Email Address]. Once again, we sincerely apologize for this error and any inconvenience it may have caused. We appreciate your understanding and patience during this time. We remain committed to providing exceptional service and ensuring that this incident serves as a learning experience to improve our future advertising campaigns. Thank you for your attention to this matter. We look forward to our continued partnership with [Company Name]. Sincerely, [Your Name] [Your Position] [Company Name]