Dear Ms. Burke,
We would like to thank you for informing us about the error on your credit card. We would like to express our sincerest apology for the accidental duplication of the service charge on your account. There was an error in my accounting and I overlooked to recheck the transactions that were done last week. The accounting department is resolving this issue to make sure that this will never happen again.
We extend our gratitude for bringing this matter to our attention. This will help us in providing you better service in the future. We are looking forward to serving you again. Rest assured that this error will not happen again. To make up for this error, we are offering you a VIP privilege card which contains discounts for our premium products and services. Our aim is to regain your confidence and trust.
If you have any other concerns that you would like to address, please feel free to contact me at 333-883-0893. We are more than willing to help you with your concerns. Thank you very much and have a nice day.