Gede: I never saw Morrowind free on GOG, which proves nothing other than my surprise when reading your story. When did this happen? The 15th of April?
Please clarify this for me: you say you "
bought" Morrowind at the GOG store but:
a) You paid nothing, and
b) You do not remember creating an account
So why exactly do you really classify this as a purchase? Wouldn't a simple "I downloaded Morrowind from the GOG store for free" describe what you remember?
Now, seen as it was already said, we can't download games without logging into our account, not even for the free games. That is because the process happens in two steps:
1) We add the games to our account (paying if they are not free), and
2) We download them from our account, as many times as we want to.
What may have happened is that you were misled into thinking that you were getting the game from GOG, or your memory is playing tricks on you (mine does too, from time to time, it is only natural) and you downloaded from another website that
could be making use of the GOG brand but don't exactly try to pass as it, and serve the GOG builds.
GOG always sends an email when you add a new item to your account. Can you find one such email? If you can, then it will clarify many things. Maybe you can find an email related to your GOG account creation. Those clues should lead you in the right direction.
Why no one is believing me? And even though morrowind was never free at all, a question is a question. But that email part... That should really solve this problem!