Cannot Download game on Mac from App Store **PLZ HELP**

I just spent almost $15 on this game and for some reason it won’t download. When downloading from the app store it gets to about 90% and says there is an error that has occured and tells me to try again. I tried another 4 times but will not work. Please help me fix this! What’s the point of buying a game you can’t play?!

I’m downloading this on:

MacBook Pro 13” 2012
2.9GHz Intel Core 17
8 GB 1600 MHz DDR3
Intel HD GFX 4000 1024 MB

Please help!

Eager2Play KOTOR2 about Star Wars®: Knights of the Old Republic™ II, v1.0.2