Downloaded the installer fine but when it said 100% downloaded I closed it then started it it said 4Gb to download even though I installed the full 4.5gb then when I hit download this popped up 
Downloaded the installer fine but when it said 100% downloaded I closed it then started it it said 4Gb to download even though I installed the full 4.5gb then when I hit download this popped up
Also how big is the game? I downloaded the 4.5 GB then I had to download a further 3.5GB? Is this right? just curious
The game is 4.56GB, you don't have to close the app, you have to let it finish completely and wait for the game to start.