Thank you in advance for your contribution. Write an excellent thank you letter for donations.Get tips and best practices, plus three inspiring samples and ready to use templates! Use this list of successful donor appreciation ideas to fill out your stewardship strategy and build lasting supporter relationships. My sincerest thank you. I don't know if my gratitude can help your healing, but I want you to know you and your loved one have made my life better. We would like to express our deepest gratitude for your contribution to . Your donation is very important to us and it is greatly accepted and appreciated.