主题：Addressing Your Concerns about Our After - Sales Service

Dear [Client's Name],

I am writing to express my sincere apologies for the dissatisfaction you have experienced with our after - sales service. We understand how important this aspect is to you and your business, and we take full responsibility for the situation.

We have immediately launched an internal investigation to identify the root causes of the problem. Our team is reviewing all the details of your case, including the communication records, the actions taken by our service staff, and the overall process flow. We are committed to finding out where we went wrong and implementing corrective measures to ensure that such issues do not occur again in the future.

To rectify the current situation, we have arranged for our most experienced and dedicated service engineer, [Engineer's Name], to take over your case. [Engineer's Name] has extensive knowledge and expertise in handling similar problems and will be in touch with you shortly to provide a detailed plan for resolving the outstanding issues. We assure you that they will work tirelessly until you are completely satisfied with the solution.

As a gesture of our goodwill and commitment to your satisfaction, we would like to offer you [compensation or incentive, e.g., a discount on your next order, free replacement parts, or extended warranty]. We understand that this may not fully compensate for the inconvenience you have endured, but we hope it demonstrates our earnestness in making things right.

We truly value your business and your trust in us. Your feedback is invaluable to us, and we will use this experience as an opportunity to improve our after - sales service across the board. We will keep you updated on the progress of the resolution and welcome any further suggestions or concerns you may have.

Thank you for your patience and understanding during this challenging time.

Best regards,

[Your Name]
[Your Company Name]
[Contact Information]

在进行危机公关的外贸邮件中，关键是要迅速承认错误，展现出积极解决问题的态度和行动，提供切实可行的解决方案和补偿措施，同时表达对客户的重视和感激，以尽力挽回客户的信任和满意度，避免对业务关系造成长期的负面影响。