This translates as:
Good morning, my Razer headset says that the code HAS ALREADY BEEN USED. 

Hello LightGrayheavengreat591,

I’m here to help. Did you purchase it brand new? Please send me a PM with your device serial number and email address so I can verify it in our system. I hope to hear from you soon.

​​​​*Thread locked to curb the conversation to PMs.