I have searching for some material of my lessons. And I signed up for www.download-provider.com. But after I payed for USD4.87, I could't find the files I have ever found. I was cheated. After 3days, they charges me USD39.73+39.64. It is totally fraud. I feel angry and helpless. I think I should bring a lawsuit angainst them and get my money back. But I don't know how. Can anybody help me??