Change age on ea/origin account

There are several things that could cause this error message, however the most common reason is that the console account has not been linked to an Origin account. If you are playing on console, make sure that your console account is linked with your Origin account. You can find a quick how-to here: http://answers.ea.com/t5/Battlefield-3/I-d-like-to-link-my-PSN-account-to-my-new-origin-account/m-p/1219252#M84965

Let us know if that fixes it for you.