Express gratitude in a heartfelt way. Send a note using Canva's free and customizable thank you letter samples.I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. The message of appreciation should stand alone. Be brief, warm, and sincere. I am writing to express my deepest gratitude for your generous financial support. Your financial aid has relieved a significant burden off my shoulders. Are you looking for ideas on how to write a heartfelt appreciation message for financial support? Don't worry; we have got you covered. Be specific Explain what you're thanking them for and talk about it.