I disagree with the other posters.
I had completed three phone shops that were quite detailed, but for which I was paid $15. On the fourth such assignment, the phone person did not do their job, so I completed the report, but was contacted requesting I call again. When I refused, I was offered a second fee, but the problem was a record of my first call they were unable to remove. As it was damned if I did or damned if I did not, I again refused, was not paid and was deactivated. Simply put, I was penalized because the sales person did not follow their script, which was why the shop existed, to make that determination.