Spore code redeemed on Windows and now can't download on Mac.

I had bought Spore, Spore Creepy & Cute and Spore Galactic Adventures 5 years ago, before Origin, and when Origin was released I registered all three from my Windows PC. I was able to download and install them on any Windows PC through Origin as long as I was logged in whith the account in which I had redeemed their codes.

Now that I switched to Mac I can't download them because Origin says "Game only available on Windows"(also in game details it states: Supported Platforms PC). I also can't install them from DVD since I don't have a CD-DVD drive. Since all three game boxes stated that the game is available for both Windows and Mac (contrary to what Origin believes) I had assumed that Origin would allow me to download/install them on Mac too.

 I would like to download my Spore games through Origin from my Mac.

Thank you.