I just wanted to thank you for being a great customer and let you know that we value your business. We cover just that in this blog!You can learn how to write a customer appreciation letter and get many samples below. Subject: Thank You for Referring New Customers! Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). It can be as simple as a small, handwritten thank you note of thanks. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. 42 customer thank you card ideas to show your appreciation. Students who apply for credit flexibility shall fill out the appropriate form on the District website.