(your street city, state, zip) (date) (name street city, state, zip) Dear ____ (name): In my work, I rarely come across accounts that are in good standing. Therefore, I am writing you personally to let you know that ____ (name of company) appreciates your promptness in paying your account. You make my job easier and more enjoyable. If you ever have a problem with shopping at our store, please do not hesitate to call me. I will be most happy to see that everything possible is done to make your association with ____ (company's name) continue to be mutually agreeable. Thank you again for your consistent punctuality and reliability. Cordially yours, (name) (title)