Bicolor,
Yes, take it back. As for what to get instead....that is a pretty tough question...
That really depends on yout set-up? Lighting, water flow, water parameters, maturity of your tank, other animals in your tank, your experience, etc. The devil is in the details.
Generally, mushrooms, star polyps, ricordia, and zoanthids are pretty easy to care for, but honestly, I would not advise you to buy anything until you research each specific coral and deceide what will work in your tank.
HTH
Stewart