You forgot to write the IMEI, or the IMEI was smudged/unreadable.

Samsung uses the IMEI to ensure you are returning the correct device. Fraudsters cannot simply send a broken, different phone; the IMEI must match the one registered to your repair ticket. Additionally, if a device is stolen during transit, the IMEI allows Samsung and carriers to blacklist it, making it useless.

Your device's IMEI number is crucial for several reasons: