Re: used codes

is the game you bought second hand/used ?or new ?

if 2nd hand/used  unfortunately  the game cannot be transferred to another account nor reregistered to another account the code if the previous owner  registered/redeemed the code it is tied to their account

if new there should be a leaflet how to install the game the 20 digit code should be on the back of that leaflet if that is the one that is giving the used/invalid emessage try to contact CS

if in the event you need to contact CS

1.https://help.ea.com/en/contact-us/
2.Click on the orange NEXT button
3.Select a platform
4.Click on the orange NEXT button
5.Select a topic and describe your problem in a few words
6.Click on the orange NEXT button
7.Click Chat Now to chat with a Game Advisor


guide on how to contact CS

http://answers.ea.com/t5/Beta-Archive/How-to-contact-a-Game-Advisor-using-the-new-EA-Help-page/td-p/2161281