I made the mistake to not have a written contract this time around since I thought I knew the lady that I provided this service for. I had provided dj service for her before with a written contract and was paid the $400 fee. This time however it was only done verbally between her and I. We agreed on a fee of $400 again. However she never paid me. I called her work and cell numerous times but she keeps ignoring my calls and voicemails. She owns a fairly large mortgage company and the party that I Djed for was for her employees. The party was over two months ago and everything was fine. People were very happy with the music and the lady told me to call her the following monday so she can send me a check. I'm not sure what to do at this point to get my hard earned money. Do I have a case?