I restored my Mac back to Mavericks due to bugs in the Yosemite beta. Now I would like to install Yosemite on a partition but I lost the installer when I restored by Mac. I tried to redownload it but it says my code has already been redeemed, which makes sense. I read online that I am supposed to be able to refresh my browser and get a new code, but this method isn't working. I tried using a code from another apple ID I had but when I hit redeem the app store sat still, didn't do anything for a half hour, and when I reset it the code was marked as redeemed. The installer also doesn't show up in the purchased tab of the App Store. What I want to know is how can I redownload the installer?