I have tried, but to no avail. They promised all manner of marketing benefits but cannot even publish a book. If I can find enough other authors I will mount a class action suit against them.
At this time, they keep calling to harass me.
They start out by sounding reasonable but then keep changing their contact. I am going public to help other authors avoid my grief.
Most of my books have been published by CreateSpace, who is legitimate but provides few services.
Currently, I am using Book Baby, who is legitimate. I would be happy to communicate my experience to other authors.