hy today i format windows and when i instal crysis 2 become this message when i want put my cd key for activation:

ERROR MESSAGE: The activation limit for this serial number has been exceeded. Contact customer support for more information.

imao i reinstal 3 times nothing happen but i put limited edition key and it accept so dont know what happen this is buggy..and after i join the game when it ask for multiplayer key i put my original key and work so this is so strange