yeah they are doing the same with an Occult preRaise giveaway - it's because the giveaway sites they are using to get the keys are giving away random keys !
https://whosgamingnow.net/giveaway/ordlc
I won one of these recently from someone and had to tell they that it was wrong DLC they listed and that I would have to mark it as not received after 7 days - eventually they did as suggested and had the mods delete the giveaway, rather than have me mark it thus.

-> The DLC may be not Leon! The DLC is random but because doesn't have no Random Option in here I choose Leon for example.

Îf you dont know what dlc it is why you create a giveaway for Leon DLC? O.o

Giveaways should accurately reflect the game being given away. If the game is not available in the giveaway list, please contact support to have the game added, instead of posting the giveaway under an incorrect name.

you cannot do this - you have, in doing this, potentially made a giveaway using false and misleading information (which is not allowed under SG rules - even if there is a marginal chance that it ends up being the correct DLC).
I recently won one like this and as I stated to the last person, you cannot make giveaways for games that you cannot know what you are giving away - if the winner gets a different DLC, then they will be well within their rights to mark the giveaway as not received !

I got a completey different DLC with my one - so they probably gave away the same free DLC that you are giving away in this giveaway - I told the giveaway creator that I would have to mark as not received - and that in order to prevent this they should submit a ticket to have the giveaway deleted - which I believe is what happened, as it is no longer in my wins.

up to you if you want to continue - but just thought I would give fair warning that this is dodgy at best and the moderators take such things poorly :)