1. go to https://myaccount.ea.com/cp-ui/security/index
then log in with your origin account/psn /xbox account
2. click: my account-->privacy settings-->security-->turn on 'login verification'
3. click on "view" backup codes
4. copy the backup codes 1,2 and 3 into the fields while placing your order. if you have already used one of them, you can also create new codes with the corresponding button.
Please use the portrait screen to access the website