Megafhm: No i do not it just say my library is currently empty, but in gog galaxy when i press my name there i can see when i got that game
RWarehall: It means you had the game until the person who had their credit card stolen found the fraudulent charge and had it charged back. At which point GoG revoked the key.
This is why G2A is a scam. The games are cheaper than you can get here for a reason, namely most were bought with a stolen credit card. The thieves offload them quickly to get what cash they can out of it.
Wow, never heard of that site and it just wreaks of "too good to be true". Things like 10 random Steam CD keys for less than $3.00, The Witcher 3 for less than half its price at a discount... Amazing.
What's even more sad is that the people who think they are getting a huge discount end up losing what little they though they put toward the game aside from the game itself. It's like "renting" the game at a luxury rate.
To the OP: save your pennies, participate in giveaways, contests, wait for sales, you can usually find a good deal directly from the source. GOG currently has their fall sale going on and you can pick up games at a really nice discount and find some similar to the one you wanted to play.
Buying codes from a 3rd party proxy selling codes for multiple platforms, especially at prices lower than the platforms themselves have when on sale, sounds like an ultimate rip-off. Caveat emptor.