HENNERY SMITH
2365 S Mayfield Ave
Chicago, IL 60652
Cell: (123)-555-1234
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear HENNERY SMITH,
We truly regret the error made on your phone bill. We mistakenly charged you for value added services subscribed by another mobile number. Kindly accept our apologies for this mix-up. We have requested the billing department to make the necessary adjustments.
Thank you for bearing with us, and we hope you continue to be our valued subscriber for many more years.
Sincerely,
Venec