Hello Everyone I have Crysis 2 since it out and I was on steam and I did not know it had changed platform and when I try to play it tells me that my key is already in use what should I do : (I'm french sorry for my english somewhat limited) ^ ^"The limited number of activating the serial number has been exceeded: Contact consomateurs Service for more information."But the customer service link is no longer the same course ^ ^ Finally, I need help, thank you.