Usually you don't have to enter an activation code. When you buy the game, at the end of the checkout process there is a button for downloading the game. When you do it this way, the game activates automatically. The reason so many people have needed help activating this time is that people who preordered Season 1 didn't get a download button, since they placed the order before the game came out. Entering the order number and password is only necessary if you don't download from the link that shows up at the end of the checkout process, and entering a manual activation key (which we send to you) is only necessary if entering your order number and password doesn't work.
I just looked up your Bone order, and you did choose a password. I can send it to you if you want.