Hello, a while back I received a message on my xbox one about being invited to join the preview program. I tried to open the message link to download the preview application, however I was getting an error and wasn't able to download the app at that time. I then forgot about the message for a while and it was auto deleted from my inbox. I talked to Xbox Support on twitter and they referred me to the preview program forum, however it doesn't show up for me, probably because I never downloaded the preview app on my xbox. So my question is how can I download the app now without the message in my inbox?