In order to qualify for the taken king single download, you need to own both previous expansions on the same account. I could tell you that this is because destiny is a continuing game and the story has to continue through to TTK. This is bungies policy and it won't change. You must own both to qualify. Pre orders and day one players of TTK get early access to Suros. It's not a bonus it's just a thank you for buying it early. Everyone else wi get access in January. Not sure why you quoted the VIP rewards, that has nothing to do with pre orders or bonus.