They have not been redeemed only gog.com says it's been viewed but if you wait a bit then it says:
This code doesn't look like one of ours. Please check that you entered the code correctly.
Some characters, like 0 & O, or 1, I & l, can look similar in print.
The codes from trailer, impossible to use ;) is this temporary or? I don't believe someone tried all the codes already.
or maybe they're not for gog.com?
Discuss!