I hired a promoter to promote my plays. He did not promote the entirely. He claims he did eblasts and informed a thousand persons by emails and phones

What can I do? He did not give me receipts. He claimed that some of my castmembers left in the middle of the rehearsals and claimed he did his job. All I wanted him to do is the promote my play. I paid him in advance. I contact the police and was advised to go to small claim court. Small claims court wants a legal contral. I went to BBB and State Attorney, and they are reviewing my case through emails from him and me. They seem to believe this promoter. The promoter said that he eblasts his members. He has a thousand members or so. In fact I am a member. I talked to a couple members of the promoters group and they said they didn''t know about my play. They never received any emails. What the promoter did, sent me an blast about my play and claimed that he send eblasts out Also the promoter referred me to someone who is associated with Fox 5 television and he also took my money claiming he will do a commercial for me. . All I have are cancelled checks and receipts. Please help