At the time I didn't no about the revoke tool from EA to revoke licence and used my 5 cd keys. I have already once emailed EA for another one which they gave me a new one but since then I have had new computer again and it was 1 time activation and they didn't tell me about the revoke tool. I've come to install crisis 2 again after a while and like I said its a new PC and activation limit is used up so do you think EA would be kind enough to send another?. Its like having a rental. .

Perhaps try?

Just go to EA live chat and ask them to give you more activations for your Serial Number...