Here is a sample letter that you would have them fill in with supervisor from the volunteer place. Edit, sign, and share volunteer confirmation letter online.No need to install software, just go to DocHub, and sign up instantly and for free. I am writing to you on behalf of Helping Hands Community Services to verify the volunteer work of Ms. Samantha R. Greene. This letter is to confirm that the above-named person completed ______ hours of community service on. Volunteer work or being part of community service is a great way to help others. These community service forms are completely free.