Hello there @tarrant1701, how are you doing? hope you are ok, you sounds angry, like if you paid for a service that you didn't get... Anyhow, the center are practically identical. I took it from each stl and put it together for you to see that they are almost the same:https://postimg.org/image/rapg32m33/
I guess you printed the small model. That center's small face are the perfect triangle. (if you pay attention one of the faces doesn't end on a tip. Making it a "not perfect triangle". In the picture that I uploaded for you, the "small face" are the ones UP.
Hope you manage to put it together soon.