It’s also not possible to register the same game twice. If you bought your game on Ebay or from a seller in the Internet (especially if it was a lot cheaper), it’s also possible that the sale wasn’t legal. If you’re absolutely positive you typed it right and it still doesn’t work, contact Customer Support. There are other letters that look similar. If the number doesn’t work for you (invalid serial code), make sure you don’t mix up 0 and O, 8 and B, O and D or 2 and Z. This code is for the free limited edition and Origin exclusive store content. Most of the time, you’ll also find a 16 letters (4 blocks with 4 letters). The serial code for the game has 20 letters (5 blocks with 4 letters). The serial code can be found on the back of the manual or on a separate (white) sheet of paper within the box.
You’ll need a serial code/product code/registration code (all the same) To install the game and the expansion packs or to register them on.