I don't have access to the greenhouse kickstarter info, but I can see that you have lots of unredeemed gift codes in your ledger. Is it possible that some of what you're looking for is in there?
It may be, but all of those things on the "My Stuff" tab have a status of "Wait". If I have to wait for it to be offered as a freebie, why would I bother with a kickstarter to get things? If that is not the problem, as I hope is the case, then I need to know where to go to access the items from the kickstarter.