Just Bought 2 keys who were supposed to be GLOBAL, but guess what ... Here you go :)

ninja'd it seems

On behalf of the silent ninja's I thank you, as both keys are already used.

Weird... tried to activate them both - it said I already own the product - both times.
When steam told me to go on to install the game (where I'd see which one it is) it just crashes and tells me that Steam couldn't install - weird..

couldn't activate, because i already own it.
Both of them are for shadow of mordor it seems

Both are Shadow of Mordor GOTY.

Unsure if used used or not though.