(your street city) (date) (name street city) Dear ___ (name): I guess you are right, ____ (name)! Although I thought that our charges are justified, your letter as well as a discussion with our service crew who visited you has convinced me that you are partially correct. The ____ (item in question) must have been defective and that is why it has probably given you so much difficulty. Therefore, I have told the bookkeeping department to cancel all of last ____ (time period's) service charges. Now I understand that all the equipment is working smoothly. Please let me assure you that we will continue to stand by our product for the full ___ (time period). Sincerely, (name) (title)