I'm sorry for the winners but it seems there are problems with some of my GA's.
The keys are from a bundle sold at Indiegala over a year ago, there seem to be numerous dupes.
I will try to get in contact with Indiegala but there is little hope since they send back keys back to the devs 60 days after end of sale, for which it is far too late now...
I will make an update and maybe delete the GA's, depending on what steamgifts will answer regarding my deletion request AFTER I get a negative answer from Indiegala.
I'm terribly sorry for what happened and will be sure to check my keys before giving them away in the future.