Hello, I am having the code for the command and Conquer and while making use of it, it says that "Entitlement already exists on this account. Please enter another valid 12-digit code or contact the retail provider for further assistance". I have not used it, before and that is why I don't know what is the reason behind this. If you are having any solution from which I will able to solve this problem then I will be thankful to you. If you are having any type of suggestion then it would be much appreciated. Thank you in advance.
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