A church donation letter should therefore include a message of appreciation for past support and a plea for continued assistance. Looking for an easy way to create fundraising letters?This guide and free templates empower you to effectively communicate needs and inspire support! Learn how to write effective fundraising letters that inspire more support from donors. Explore best practices and templates in this comprehensive guide. STEP 1: Complete Letter of Support Form (link to form). The online donation form must be filled out completely in order for your request to be considered. Try our free donation request letter templates! Download our standard template or check out our example letters for events, auctions, schools, and more. The Early Giving period is the few days leading up to Give Miami Day during which we will open the GiveMiamiDay.