If you cannot find or redeem a digital serial, the films are currently widely available on subscription services: Watch Alvin and the Chipmunks: The Road Chip | Disney+ Watch Alvin and the Chipmunks: The Road Chip | Disney+ Disney Plus Watch Alvin and the Chipmunks | Disney+
Depending on when your copy of the movie was manufactured, your serial code will likely be redeemed through one of the following platforms: alvin and the chipmunks digital copy serial