LifeZette interview questions

I interviewed with two men who seemed enthusiastic about my work. They asked me to do a "try out" piece and said they'd pay me quite well for it. I wrote the piece - they told me to make it fit their political alignment. I did so as much as I could without sacrificing accuracy. I didn't hear back from them for awhile. I check the site, and lo and behold, my piece has top billing under the byline of one of the interviewers! I brought it to his attention and he put it under my name. They then asked me to do another test piece, which like a fool, I did (thinking if nothing else, they'll pay me for these pieces!) Sure enough, they never paid me and stopped responding to my emails. This left me with a negative opinion about the organization's leadership. As far as I'm concerned, they still owe me. BEWARE of doing any work for them without a signed offer in hand...they will stiff you.