A dilemma regarding unsent gifts and double wins.

Hellow everybodey! :D
Today I'm writing you to tell about a problem of mine that I cannot really solve myself, or rather I can't find a solution that wouldn't do no harm to anyone. Now I'll explain myself: many months ago, I've won a copy of a game in a GA here. The creator sent me immediately the key and I activated it successfully. So far so good. Now we jump some time later: when I log into my steam account I receive the infamous notification about the removal of that game from my account beacuse of some problem with the first buyer of that key (so probably a key that the aforementioned author of the GA has bought from a seller that tricked him, but the real reason of the removal is not the thing I want to focus on today). So I immediately message the author of that, at that point, old GA and he tells me to send him a lot of screenshots and proofs that the site where he bought the key requested him (at this point I want to underline that the author of the GA has been VERY collaborative and kind), so I send him all that stuff and he tells me to wait. Since you have bothered reading my wall of text you can find some GAs with the code capital h, seven, capital j, capital t and u (make sure you finish reading the whole thread after you've entered the GAs, and please, do not spoil this "little surprise"). Since then I've rewritten him a couple of times and he always answered me that the site hadn't answered yet. Back to the present, I haven't received no working key, and have still that won GA marked as not received.
Therefore, up to now I've never entered any other GA of that game that I previously won and "lost", because if I won it from another giver, I would condemn that first (unlucky) giver to a "scarred" SG profile, with an unsent gift that he would never be able to fix. So, apart from keeping soliciting the author of the GA to find another key, is there a a way to solve this problem? Because on one hand I have no chance to win that game again keeping him from a "permanently scarred SG profile", and on the other hand I could try to win that game again but condemning him to that famous everlasting scar.

P.S. I know that I could simply renounce to win that game (and I will probably do that if there is no other solution), but I wanted to write to you all this "mishmash" to know your opinions.
P.P.S. sorry if I made some mistakes, I'm not a native English speaker and the subject is difficult to explain ><